Investigators respond to calls of an attack on a man in front of a house on Elm Street; they discover a quadruple homicide; detectives soon discover there is more to these murders than meets the eye, involving torture, revenge and even Satan.

During a street festival, detectives discover the body of a young man hidden inside a trash can; with few leads to go on and suspects at every turn, police aren't sure who they can trust, and who is the next one.

What started as small-town hijinks leads two teenagers to go missing on Thanksgiving; when investigators get a phone call from a man who claims he is responsible for the deaths while defending his home, they must determine truth from madness.

A hippie grandpa goes missing on Halloween and turns up in his van, dead, on Elm Street; Detectives look into who might have killed this beloved family man, only to find they are on the trail of someone who has most likely killed before.

Murder weapons often hold several critical forensic clues about the crime.

Two neighboring friends turn enemies after a vicious spat; both of their homes burned to the ground.

After moving to a quiet seaside town in Maine, a family experiences a night shattered by a barrage of gunfire.

Murder weapons often hold several critical forensic clues about the crime.

Two neighboring friends turn enemies after a vicious spat; both of their homes burned to the ground.

After moving to a quiet seaside town in Maine, a family experiences a night shattered by a barrage of gunfire.

Murder weapons often hold several critical forensic clues about the crime.

Two neighboring friends turn enemies after a vicious spat; both of their homes burned to the ground.

After moving to a quiet seaside town in Maine, a family experiences a night shattered by a barrage of gunfire.

Military wife is found strangled; Kenda is on the trail.

After firefighters find Victor Woods stabbed to death in his burning apartment, Detective Joe Kenda begins tracking Colorado's most notorious serial killer.

Dianne Hood, a mother of three, is shot to death on her way home.

After teenage runaway Maggie Fetty is found strangled to death on a mountain road, Lt. Joe Kenda must turn suspects against each in order to solve the crime.

Lt. Joe Kenda examines a fuzzy image from a newly installed surveillance camera while investigating the murder of five people at a shopping center wherein much of the evidence was destroyed in a fire.

The body of Elsie Jennes if found in the basement of her burning house.

Layne Schmidtke is beaten to death by a group of teenagers.

A sunny day in Philly comes with a full moon; a museum suffers an invasion in the buff; small-town USA gets a bit more than it bargained for.

A single car accident gets a quiet neighborhood talking; things get physical outside an Atlanta gym; the neighbor from hell, a naked machete attack escalates; Baltimore police officers have their hands full when a naked man turns violent.

Military wife is found strangled; Kenda is on the trail.

After firefighters find Victor Woods stabbed to death in his burning apartment, Detective Joe Kenda begins tracking Colorado's most notorious serial killer.

Dianne Hood, a mother of three, is shot to death on her way home.

After teenage runaway Maggie Fetty is found strangled to death on a mountain road, Lt. Joe Kenda must turn suspects against each in order to solve the crime.

Lt. Joe Kenda examines a fuzzy image from a newly installed surveillance camera while investigating the murder of five people at a shopping center wherein much of the evidence was destroyed in a fire.

The body of Elsie Jennes if found in the basement of her burning house.

Layne Schmidtke is beaten to death by a group of teenagers.

Killers attempt to use the elements to cover their crimes.

Two Altadena, Calif., families fear for their lives when an LAPD cop moves in next door.

An elite California lakeside community is shaken when two well-to-do gentlemen go to war over a one-inch property line discrepancy; one neighbor takes the dispute to new heights when he hires a hit man to solve the problem permanently.

Killers attempt to use the elements to cover their crimes.

Two Altadena, Calif., families fear for their lives when an LAPD cop moves in next door.

An elite California lakeside community is shaken when two well-to-do gentlemen go to war over a one-inch property line discrepancy; one neighbor takes the dispute to new heights when he hires a hit man to solve the problem permanently.

Killers attempt to use the elements to cover their crimes.

Two Altadena, Calif., families fear for their lives when an LAPD cop moves in next door.

An elite California lakeside community is shaken when two well-to-do gentlemen go to war over a one-inch property line discrepancy; one neighbor takes the dispute to new heights when he hires a hit man to solve the problem permanently.

Patti Berry disappears on the way to pick up her child at the babysitter's; her body is found in a secluded wooded area not far from her abandoned blood-soaked car.

A young woman's body is found in the ashes of a fire.

A young woman's lifeless body is found on the bank of a shallow river, and there's a note in her pocket that may point to her killer.

Reeda Roundy and Betty Gray are found murdered in Roundy's home, along with a message written in blood, saying "Satan Loves You;" detectives piece together the stunning truth behind the murders with insights provided by the victims' families.

John Greathouse finds his stepdaughter, Kelli Bailey, murdered in her bedroom; investigators find a video tape and a dead man's forged check and hope these clues will be the keys to bringing Bailey's cold-blooded killer to justice.

In Las Vegas, 41-year-old Nancy Menke, a mother of four, is found handcuffed and murdered in the passenger seat of her car; a records clerk in the insurance fraud unit stumbles upon a strange report that blows open Menke's murder case.

The murder of a beloved and talented church organist sends police on a disturbing search for answers.

A group of drivers brawl in a Texas intersection; a man pursues and attacks a motorist on an isolated road; a driver gets into an intense exchange with construction workers; a raging motorist takes out his frustrations on another man's windshield.

Good Samaritans assist road rage victims; a group of women gets into a big brawl in a Florida intersection; a motorcycle causes an accident; a man plows through a parade route.

Patti Berry disappears on the way to pick up her child at the babysitter's; her body is found in a secluded wooded area not far from her abandoned blood-soaked car.

A young woman's body is found in the ashes of a fire.

A young woman's lifeless body is found on the bank of a shallow river, and there's a note in her pocket that may point to her killer.

Reeda Roundy and Betty Gray are found murdered in Roundy's home, along with a message written in blood, saying "Satan Loves You;" detectives piece together the stunning truth behind the murders with insights provided by the victims' families.

John Greathouse finds his stepdaughter, Kelli Bailey, murdered in her bedroom; investigators find a video tape and a dead man's forged check and hope these clues will be the keys to bringing Bailey's cold-blooded killer to justice.

In Las Vegas, 41-year-old Nancy Menke, a mother of four, is found handcuffed and murdered in the passenger seat of her car; a records clerk in the insurance fraud unit stumbles upon a strange report that blows open Menke's murder case.

The murder of a beloved and talented church organist sends police on a disturbing search for answers.

In fall 1991, Toronto was paralyzed by the story of a missing six-year-old girl found raped and murdered in the boiler room of her apartment building; with four suspects, CSIs turned to the brand-new science of DNA to catch the killer.

A three-year feud over land and morals reaches a bloody conclusion for a young mother in Miami.

In Carmel Canyon, Calif., wealthy neighbors get into disputes over everything from shared roads and bridges to the upkeep of their respective properties until anger boils over and the ongoing feud is resolved with fatal gunfire.

In fall 1991, Toronto was paralyzed by the story of a missing six-year-old girl found raped and murdered in the boiler room of her apartment building; with four suspects, CSIs turned to the brand-new science of DNA to catch the killer.

A three-year feud over land and morals reaches a bloody conclusion for a young mother in Miami.

In Carmel Canyon, Calif., wealthy neighbors get into disputes over everything from shared roads and bridges to the upkeep of their respective properties until anger boils over and the ongoing feud is resolved with fatal gunfire.

In fall 1991, Toronto was paralyzed by the story of a missing six-year-old girl found raped and murdered in the boiler room of her apartment building; with four suspects, CSIs turned to the brand-new science of DNA to catch the killer.

A three-year feud over land and morals reaches a bloody conclusion for a young mother in Miami.

In Carmel Canyon, Calif., wealthy neighbors get into disputes over everything from shared roads and bridges to the upkeep of their respective properties until anger boils over and the ongoing feud is resolved with fatal gunfire.

In Ohio, a man shoots his ex; in Utah, police are called to a house where a woman and children have escaped a suspect armed with a machete; in California, a therapist is attacked by a former patient.

In Texas, police set a trap for a would-be killer; a high-speed chase leads police into a Florida swamp, where a police dog locates the suspect who now needs to be rescued.

In New York, a domestic disturbance takes a violent turn which changes a police chief's life; in Florida, an officer is separated from his K-9 while chasing two suspects; in Indiana, an officer stares down the barrel of a suspect's gun.

Arkansas police stop a knifeman enraged over a midnight pot roast; in Delray Beach, Fla., officers must rescue two children teetering on a ledge with their mother who is high on drugs; in Utah, a trespasser attacks an officer with his own baton.

Arkansas officers are pinned down by a deadly gunman for four hours; after a high-speed chase of a stolen pick-up, Oklahoma City officers fear an ambush when a suspect bails; a naked driver waving a gun leads Wisconsin police to a dangerous standoff.

An Arizona mother triggers a desperate search for her son, who is armed and suicidal; an Ohio officer fights for his life when a suspect overpowers him; a Wisconsin man shoots his co-workers and police must find him to stop the threat.

In California police face off against a knife-wielding bodybuilder; a wanted criminal draws an officer into a brawl in a sex shop, and a fleeing suspect drives a car directly at officers to escape.

The Lunsford family's lives turn upside down when someone snatches nine-year-old Jessie from her bed in the middle of the night; authorities scour the area looking for her when they discover a dark truth, she is closer than they ever realized.

In Ohio, a man shoots his ex; in Utah, police are called to a house where a woman and children have escaped a suspect armed with a machete; in California, a therapist is attacked by a former patient.

In Texas, police set a trap for a would-be killer; a high-speed chase leads police into a Florida swamp, where a police dog locates the suspect who now needs to be rescued.

In New York, a domestic disturbance takes a violent turn which changes a police chief's life; in Florida, an officer is separated from his K-9 while chasing two suspects; in Indiana, an officer stares down the barrel of a suspect's gun.

Arkansas police stop a knifeman enraged over a midnight pot roast; in Delray Beach, Fla., officers must rescue two children teetering on a ledge with their mother who is high on drugs; in Utah, a trespasser attacks an officer with his own baton.

Arkansas officers are pinned down by a deadly gunman for four hours; after a high-speed chase of a stolen pick-up, Oklahoma City officers fear an ambush when a suspect bails; a naked driver waving a gun leads Wisconsin police to a dangerous standoff.

An Arizona mother triggers a desperate search for her son, who is armed and suicidal; an Ohio officer fights for his life when a suspect overpowers him; a Wisconsin man shoots his co-workers and police must find him to stop the threat.

In California police face off against a knife-wielding bodybuilder; a wanted criminal draws an officer into a brawl in a sex shop, and a fleeing suspect drives a car directly at officers to escape.

In 1988, motorists discover human body parts dumped along the highway.

Enmity, treachery and gunfire ensue when a man rejects the romantic advances of his next door neighbor.

When a man moves to Canyon Country, Calif., he finds himself embroiled in a bizarre and increasingly acrimonious 8-year feud with a neighbor that terminates with blasts from a shotgun.

In 1988, motorists discover human body parts dumped along the highway.

Enmity, treachery and gunfire ensue when a man rejects the romantic advances of his next door neighbor.

When a man moves to Canyon Country, Calif., he finds himself embroiled in a bizarre and increasingly acrimonious 8-year feud with a neighbor that terminates with blasts from a shotgun.

In 1988, motorists discover human body parts dumped along the highway.

Enmity, treachery and gunfire ensue when a man rejects the romantic advances of his next door neighbor.

When a man moves to Canyon Country, Calif., he finds himself embroiled in a bizarre and increasingly acrimonious 8-year feud with a neighbor that terminates with blasts from a shotgun.

A woman is murdered the same night she's supposed to go out with rising star Ashton Kutcher, and police believe the clues point to a serial killer; as the number of victims climbs, one brave woman manages to survive.

In June 2003, a 5-year-old girl walks around the corner to her friend's house and vanishes into thin air; as police investigate, they realize this quaint Midwest community is hiding some disturbing secrets that may never be fully uncovered.

In 2001, actor Robert Blake finds his new wife, Bonny Lee Bakely, shot in the head in the couple's car; the largest homicide investigation in LAPD history uncovers a story of blind ambition and betrayal.

Two members of a prominent family are murdered in Arkansas, and a teenager is arrested; for 24 years, one woman believes the teen is innocent.

A Texas woman is raped and murdered; a trial sparks a racially charged debate over whether an innocent man was condemned to death; new evidence comes to light; the truth about who killed Stacy Stites.

In December 2003, police respond to a mysterious 911 call at a home in Mansfield, Texas; when authorities enter, they discover two bodies; the key to finding the killer is within one of the victim's grasp.

Two days before the new millennium, the Freeman family trailer is burned to the ground; the couple's remains are found, but their teenage daughter and her friend are missing.

Detectives take Hadden and Jesus on road trips to hunt for bodies and clues, hoping to keep Hadden in jail for good; news of Jesus' fate surfaces; Hadden taunts investigators with the breadth of his cold cases.

A woman is murdered the same night she's supposed to go out with rising star Ashton Kutcher, and police believe the clues point to a serial killer; as the number of victims climbs, one brave woman manages to survive.

In June 2003, a 5-year-old girl walks around the corner to her friend's house and vanishes into thin air; as police investigate, they realize this quaint Midwest community is hiding some disturbing secrets that may never be fully uncovered.

In 2001, actor Robert Blake finds his new wife, Bonny Lee Bakely, shot in the head in the couple's car; the largest homicide investigation in LAPD history uncovers a story of blind ambition and betrayal.

Two members of a prominent family are murdered in Arkansas, and a teenager is arrested; for 24 years, one woman believes the teen is innocent.

A Texas woman is raped and murdered; a trial sparks a racially charged debate over whether an innocent man was condemned to death; new evidence comes to light; the truth about who killed Stacy Stites.

In December 2003, police respond to a mysterious 911 call at a home in Mansfield, Texas; when authorities enter, they discover two bodies; the key to finding the killer is within one of the victim's grasp.

Two days before the new millennium, the Freeman family trailer is burned to the ground; the couple's remains are found, but their teenage daughter and her friend are missing.

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State, but when Conrad goes missing, and Ricky later dies under suspicious circumstances, it falls to Conrad's diary to explain the truth about the family.

A family moves into a Minnesota lake house, then a dispute with a neighbor over water access escalates until it leads to a bloody resolution.

In Elyria, Ohio, two neighboring families live in harmony for decades, then their friendly coexistence devolves into acrimony, accusations and violence.

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State, but when Conrad goes missing, and Ricky later dies under suspicious circumstances, it falls to Conrad's diary to explain the truth about the family.

A family moves into a Minnesota lake house, then a dispute with a neighbor over water access escalates until it leads to a bloody resolution.

In Elyria, Ohio, two neighboring families live in harmony for decades, then their friendly coexistence devolves into acrimony, accusations and violence.

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State, but when Conrad goes missing, and Ricky later dies under suspicious circumstances, it falls to Conrad's diary to explain the truth about the family.

A family moves into a Minnesota lake house, then a dispute with a neighbor over water access escalates until it leads to a bloody resolution.

In Elyria, Ohio, two neighboring families live in harmony for decades, then their friendly coexistence devolves into acrimony, accusations and violence.

Tabatha Spake grows up in an adoring home, but by the time she's a teenager, she longs for a different kind of love; just when she finally finds happiness, a monster turns her dreams into a nightmare.

In Hudson, Wis., Charlene and Darrell Wold seem to be living a blissful existence with their blended family; they do all they can to keep their household safe and secure, but they never imagined the real danger would come from within.

Book smart Avis Banks always puts her career ahead of her love life, until she meets handsome teacher Keyon Pittman. But just when she's on the brink of having it all, a dirty secret tears them apart in the most brutal way possible.

Talented artist Kira and marketing manager Matthew appear to be happily married; then, a maintenance worker makes a grisly discovery, and investigations show that all was not well.

Raised in a big Mormon family, Ashlee Harmon grows up wanting that same kind of lifestyle; she marries her college boyfriend, Emmett Corrigan, and raises five kids while he opens his own law firm, but dirty secrets soon trigger a deadly showdown.

Stephanie is a gifted stage performer and much-loved teacher; behind closed doors, resentment and envy fester in her marriage, leading to a shocking 911 call.

Onlookers witness the assault of a riverboat captain on a dock and rush to help; man flees from police using unconventional methods; store clerk traps a burglar in her store; bouncer defends a strip club from a gunman.

A woman has a meltdown in a local bank; a driver causes extreme property damage; a police showdown comes to an explosive end; a detained woman gets the upper hand on the police.

Little sister Heather terrorizes her siblings, David and Crystal from a young age; everyone hopes she'll change when she becomes a mom, but she only gets worse; after Heather meets Kareem, she becomes a monster.

A scene straight out of a horror film unfolds outside of a Colorado police station, leaving one woman clinging to life and a second violently abducted; Det. Rick Archer soon uncovers a disturbing pattern that may have started a decade earlier.

Tabatha Spake grows up in an adoring home, but by the time she's a teenager, she longs for a different kind of love; just when she finally finds happiness, a monster turns her dreams into a nightmare.

In Hudson, Wis., Charlene and Darrell Wold seem to be living a blissful existence with their blended family; they do all they can to keep their household safe and secure, but they never imagined the real danger would come from within.

Book smart Avis Banks always puts her career ahead of her love life, until she meets handsome teacher Keyon Pittman. But just when she's on the brink of having it all, a dirty secret tears them apart in the most brutal way possible.

Talented artist Kira and marketing manager Matthew appear to be happily married; then, a maintenance worker makes a grisly discovery, and investigations show that all was not well.

Raised in a big Mormon family, Ashlee Harmon grows up wanting that same kind of lifestyle; she marries her college boyfriend, Emmett Corrigan, and raises five kids while he opens his own law firm, but dirty secrets soon trigger a deadly showdown.

Stephanie is a gifted stage performer and much-loved teacher; behind closed doors, resentment and envy fester in her marriage, leading to a shocking 911 call.

Lisa Reeves wasn't looking for love when she met Randy Gwathney -- what she got, instead, was bloodshed.

Erika Verdecia's family launches its own search when the 33-year-old goes missing in 2021, and the homegrown investigation uncovers a tragic trail of bloodshed 36 years in the making.

In 2004, the cat-and-mouse hunt for a serial killer targeting Black females antagonizes investigators in Peoria, Ill.

When five people vanish in 1993, cops have zero leads; seven years later, someone connected to the case starts to talk.

Police question a man in the disappearance of his pregnant ex-girlfriend and her young son; they discover he has a terrifying capacity for violence.

A girl disappears after school and her last known steps are caught on surveillance cameras; these cameras lead investigators to two dark minds that carefully plotted one of the most sinister, depraved crimes imaginable.

A Colorado woman is missing and her roommate may be a rare female psychopath and a skilled manipulator.

A death row inmate grants an interview just weeks prior to his execution; bodies of a man's family members are discovered in the ashes of a house fire, and he is the main suspect in the murders.

A young Ohio man vanishes without a trace, detectives embark on an investigation involving a love triangle, drugs and murder.

Las Vegas Detectives find themselves on the hunt of their careers as they try to track down those responsible for the horrific murder of a young woman after her body turns up in a concrete and wooden box in the middle of the desert.

Police find a murder victim inside a Civil War crypt in a historic cemetery in Southwest Philadelphia; detectives from two counties navigate the evils of a notorious motorcycle club to try and solve the case.

Pennsylvania State Troopers are tasked with a haunting murder investigation that takes more than a decade to solve after finding charred and decomposed human remains in the Poconos.

The disappearance of a 17-year-old girl leads detectives to an investigation spanning two decades; the case soon goes cold, but gets a renewed push after three women escape Ariel Castro's Cleveland house of horrors.

When a young couple goes missing in Eureka, Utah, detectives from neighboring counties work together to track down their killer and, with the help of a highly trained dive team, recover their bodies in an abandoned mineshaft.

In Texas, an officer is shot multiple times during a foot chase; the race is on as backup tries to locate the injured officer and track down the assailant.

A scene straight out of a horror film unfolds outside of a Colorado police station, leaving one woman clinging to life and a second violently abducted; Det. Rick Archer soon uncovers a disturbing pattern that may have started a decade earlier.

A sunny day in Philly comes with a full moon; a museum suffers an invasion in the buff; small-town USA gets a bit more than it bargained for.

A single car accident gets a quiet neighborhood talking; things get physical outside an Atlanta gym; the neighbor from hell, a naked machete attack escalates; Baltimore police officers have their hands full when a naked man turns violent.

A group of drivers brawl in a Texas intersection; a man pursues and attacks a motorist on an isolated road; a driver gets into an intense exchange with construction workers; a raging motorist takes out his frustrations on another man's windshield.

Good Samaritans assist road rage victims; a group of women gets into a big brawl in a Florida intersection; a motorcycle causes an accident; a man plows through a parade route.

The Lunsford family's lives turn upside down when someone snatches nine-year-old Jessie from her bed in the middle of the night; authorities scour the area looking for her when they discover a dark truth, she is closer than they ever realized.

Detectives take Hadden and Jesus on road trips to hunt for bodies and clues, hoping to keep Hadden in jail for good; news of Jesus' fate surfaces; Hadden taunts investigators with the breadth of his cold cases.

A young Ohio man vanishes without a trace, detectives embark on an investigation involving a love triangle, drugs and murder.

Las Vegas Detectives find themselves on the hunt of their careers as they try to track down those responsible for the horrific murder of a young woman after her body turns up in a concrete and wooden box in the middle of the desert.

Police find a murder victim inside a Civil War crypt in a historic cemetery in Southwest Philadelphia; detectives from two counties navigate the evils of a notorious motorcycle club to try and solve the case.

Pennsylvania State Troopers are tasked with a haunting murder investigation that takes more than a decade to solve after finding charred and decomposed human remains in the Poconos.

The disappearance of a 17-year-old girl leads detectives to an investigation spanning two decades; the case soon goes cold, but gets a renewed push after three women escape Ariel Castro's Cleveland house of horrors.

When a young couple goes missing in Eureka, Utah, detectives from neighboring counties work together to track down their killer and, with the help of a highly trained dive team, recover their bodies in an abandoned mineshaft.

A Chicago cop faces an evil entity in a bar; a rookie officer patrols the haunted floor of a courthouse; paramedics aid a man possessed by a demon.

A paramedic becomes involved in a shootout that involves paranormal elements; a convict displays strange powers; a coroner encounters restless dead.

Apache County Sheriff's Office begins a double homicide investigation after the gruesome discovery of an elderly couple's remains in Sanders, Ariz.

Ahmad Shad Laster's loved ones are grief-stricken when he is shot outside a friend's home; Flagler County, Fla., detectives uncover evidence that blows the case wide open, but the hunt for justice tests family bonds and reveals shocking secrets.

A woman of faith, Susan Hernandez, is the last person police would expect to find murdered in her basement; searching for suspects, detectives turn over every stone in the hunt for Susan's killer, with a result that shakes the town to its core.

A defiant victim refuses to give up even when a thief runs him over; an unarmed security guard saves the day when a gunman storms in; brave homeowners tackle flames after an unprovoked car arson; a crossing guard risks her own life to save a child.

A quick-thinking employee outsmarts armed thieves; a mother jumps into action when her son gets snatched off the street; someone attacks a woman in her own driveway; a burglar literally gets stuck, with comedic results.

Maria's world shatters when her husband Joel, starts an affair; she fights to save their marriage, but Joel refuses to give up his mistress, and Maria's patience runs out; when she threatens divorce, Joel makes a deadly plan to stop her.

Jenny and Mike are teen sweethearts but after marrying, Mike begins a campaign of control and violence against his wife and children; just as Jenny plans to escape her living nightmare, Mike finds out and decides he will do anything to stop her.

A successful Florida family has their American dream shattered when a mysterious figure dressed as a clown shoots a loving mother on her doorstep; the case goes cold for decades until an unexpected break helps bring the killer clown to justice.

When Heidi's alcoholic husband, Chris, goes missing, she searches far and wide to find him, getting help from Chris' wider family; after a missing person's report is filed, police uncover a dark secret hidden in the basement of the marital home.

When Angie meets Joe, her family and friends aren't sure what to make of their relationship; the couple marry and have kids but soon Angie becomes isolated from her loved ones and trapped in a spiral of abuse that ends in an horrific triple homicide.

After years of abuse, Cheryl musters the courage to leave her husband, Thom; he stalks her and torments their two children; when Cheryl finds a new love, her ex sets a trap to take the ultimate revenge.

Little sister Heather terrorizes her siblings, David and Crystal from a young age; everyone hopes she'll change when she becomes a mom, but she only gets worse; after Heather meets Kareem, she becomes a monster.

Detectives take Hadden and Jesus on road trips to hunt for bodies and clues, hoping to keep Hadden in jail for good; news of Jesus' fate surfaces; Hadden taunts investigators with the breadth of his cold cases.

A man holds his child hostage, in California; the officers negotiate with him, he sets the house on fire; in Florida, criminals break into a jewelry store; they must catch them before they escape with over $70,000 worth of jewelry.

Sometimes, the only way to stop a madman before he kills again is to get inside the mind of a monster and think like he does. Cops go head-to-head with the most dangerous and deadly criminals in one-on-one battles of wits, only one of them will win.

Onlookers witness the assault of a riverboat captain on a dock and rush to help; man flees from police using unconventional methods; store clerk traps a burglar in her store; bouncer defends a strip club from a gunman.

A woman has a meltdown in a local bank; a driver causes extreme property damage; a police showdown comes to an explosive end; a detained woman gets the upper hand on the police.

A group of drivers brawl in a Texas intersection; a man pursues and attacks a motorist on an isolated road; a driver gets into an intense exchange with construction workers; a raging motorist takes out his frustrations on another man's windshield.

Good Samaritans assist road rage victims; a group of women gets into a big brawl in a Florida intersection; a motorcycle causes an accident; a man plows through a parade route.

Maria's world shatters when her husband Joel, starts an affair; she fights to save their marriage, but Joel refuses to give up his mistress, and Maria's patience runs out; when she threatens divorce, Joel makes a deadly plan to stop her.

Jenny and Mike are teen sweethearts but after marrying, Mike begins a campaign of control and violence against his wife and children; just as Jenny plans to escape her living nightmare, Mike finds out and decides he will do anything to stop her.

A successful Florida family has their American dream shattered when a mysterious figure dressed as a clown shoots a loving mother on her doorstep; the case goes cold for decades until an unexpected break helps bring the killer clown to justice.

When Heidi's alcoholic husband, Chris, goes missing, she searches far and wide to find him, getting help from Chris' wider family; after a missing person's report is filed, police uncover a dark secret hidden in the basement of the marital home.

When Angie meets Joe, her family and friends aren't sure what to make of their relationship; the couple marry and have kids but soon Angie becomes isolated from her loved ones and trapped in a spiral of abuse that ends in an horrific triple homicide.

After years of abuse, Cheryl musters the courage to leave her husband, Thom; he stalks her and torments their two children; when Cheryl finds a new love, her ex sets a trap to take the ultimate revenge.

In 1990, Gainesville, Fla., becomes the site of a number of coed murders.

When family members fall ill from deadly poison found in their soda, investigators turn their attention to the quiet couple who live next door.

A couple moves to an idyllic California beach town and hits it off with their new neighbors, then one of the wives descends into drugs and madness, terrorizing the other.

In 1990, Gainesville, Fla., becomes the site of a number of coed murders.

When family members fall ill from deadly poison found in their soda, investigators turn their attention to the quiet couple who live next door.

A couple moves to an idyllic California beach town and hits it off with their new neighbors, then one of the wives descends into drugs and madness, terrorizing the other.

In 1990, Gainesville, Fla., becomes the site of a number of coed murders.

When family members fall ill from deadly poison found in their soda, investigators turn their attention to the quiet couple who live next door.

A couple moves to an idyllic California beach town and hits it off with their new neighbors, then one of the wives descends into drugs and madness, terrorizing the other.

Missy Berry, a fast food manager, is found dead in a running car at a deserted intersection.

Lt. Joe Kenda must comb through unreliable testimony from teenage witnesses when investigating the shooting death of a 14-year-old student stemming from a heated lunchroom confrontation.

When police discover the lifeless bodies of Sophia Gerardo, four children and a cat, they suspect a ritualistic mass murder, then Lt. Joe Kenda uncovers a cause more frightening and deadly than anyone could've imagined.

A 15 year old boy finds his mother shot to death when he comes home from school.

Lt. Joe Kenda gets an unexpected tip while investigating the case of a 29-year-old man shot to death outside a neighborhood bar.

A young woman is found naked and strangled in a park close to her home.

Hunters find a bloody car on a remote road.

A serial predator sows fear inside a home; a stolen cop car causes chaos; a patriotic prowler puts country first; a dangerous joyride caught on camera.

An ungodly struggle on hallowed ground; a Florida man strikes again; a brazen break-in comes with a twist; a crash on an Omaha freeway is just a prelude to a life-threatening shooting spree.

Missy Berry, a fast food manager, is found dead in a running car at a deserted intersection.

Lt. Joe Kenda must comb through unreliable testimony from teenage witnesses when investigating the shooting death of a 14-year-old student stemming from a heated lunchroom confrontation.

When police discover the lifeless bodies of Sophia Gerardo, four children and a cat, they suspect a ritualistic mass murder, then Lt. Joe Kenda uncovers a cause more frightening and deadly than anyone could've imagined.

A 15 year old boy finds his mother shot to death when he comes home from school.

Lt. Joe Kenda gets an unexpected tip while investigating the case of a 29-year-old man shot to death outside a neighborhood bar.

A young woman is found naked and strangled in a park close to her home.

Hunters find a bloody car on a remote road.

The disappearance of millionaire Frank Black.

When neighbors stand up to a bully after his dog bites their son, a grudge he's been nursing for decades finally explodes into a frenzy of violence.

When a freewheeling family moves from California to the conservative enclave of Leesburg, Va., they get on the wrong side of one of their neighbors, and the conflict escalates until bullets fly and blood flows in the street.

The disappearance of millionaire Frank Black.

When neighbors stand up to a bully after his dog bites their son, a grudge he's been nursing for decades finally explodes into a frenzy of violence.

When a freewheeling family moves from California to the conservative enclave of Leesburg, Va., they get on the wrong side of one of their neighbors, and the conflict escalates until bullets fly and blood flows in the street.

The disappearance of millionaire Frank Black.

When neighbors stand up to a bully after his dog bites their son, a grudge he's been nursing for decades finally explodes into a frenzy of violence.

When a freewheeling family moves from California to the conservative enclave of Leesburg, Va., they get on the wrong side of one of their neighbors, and the conflict escalates until bullets fly and blood flows in the street.

Paula takes a look at the mysterious death of a successful car salesman; he is killed in a hail of gunfire that erupts on his front porch.

A mother finds her teenage daughter murdered in their own home; decades later, a few drops of blood are discovered and may hold the key to solving the cold case.

A young woman is found shot to death near a dirt road; police hope the bullet found at the scene will unmask her killer.

When a young woman and her 6-month-old child disappear off the quiet streets of Deerfield Beach, Fla., it is the beginning of a terrifying murder mystery.

A convenience store worker is abducted from behind the counter in the middle of the night, becoming the first of three women to disappear from their small town under shockingly similar circumstances.

The body of a teenager is found savagely murdered just steps from her home; when the investigation stalls, police are approached by a brave young woman who is willing to risk her own safety to get justice.

A wave of fear sweeps across Aurora, Colo., after two similar crimes are committed just days apart, and police race to stop a hammer-wielding killer before he strikes again.

A woman bites another driver after arguing about a dented door; a young woman takes evasive maneuvers to survive a road-raging driver; a woman flees from a wild driver; two cars throw things at each other in a drive-thru.

A sports car driver destroys multiple cars; a man climbs onto the hood of a school bus; a menacing man harasses a father and his son; a disgruntled driver shoots at another motorist.

Paula takes a look at the mysterious death of a successful car salesman; he is killed in a hail of gunfire that erupts on his front porch.

A mother finds her teenage daughter murdered in their own home; decades later, a few drops of blood are discovered and may hold the key to solving the cold case.

A young woman is found shot to death near a dirt road; police hope the bullet found at the scene will unmask her killer.

When a young woman and her 6-month-old child disappear off the quiet streets of Deerfield Beach, Fla., it is the beginning of a terrifying murder mystery.

A convenience store worker is abducted from behind the counter in the middle of the night, becoming the first of three women to disappear from their small town under shockingly similar circumstances.

The body of a teenager is found savagely murdered just steps from her home; when the investigation stalls, police are approached by a brave young woman who is willing to risk her own safety to get justice.

A wave of fear sweeps across Aurora, Colo., after two similar crimes are committed just days apart, and police race to stop a hammer-wielding killer before he strikes again.

CSIs determine that a girl's ex-husband had his parents assassinate her.

Seeking to make a fresh start in Las Vegas, a teacher and her son find themselves the targets of harassment and escalating intimidation by the woman who lives next door.

In Vancouver, Wash., a young couple's neighbor violates the strict codes of community conduct in their housing development.

CSIs determine that a girl's ex-husband had his parents assassinate her.

Seeking to make a fresh start in Las Vegas, a teacher and her son find themselves the targets of harassment and escalating intimidation by the woman who lives next door.

In Vancouver, Wash., a young couple's neighbor violates the strict codes of community conduct in their housing development.

CSIs determine that a girl's ex-husband had his parents assassinate her.

Seeking to make a fresh start in Las Vegas, a teacher and her son find themselves the targets of harassment and escalating intimidation by the woman who lives next door.

In Vancouver, Wash., a young couple's neighbor violates the strict codes of community conduct in their housing development.

A suspected drug dealer in Georgia won't go down without a fight; police in Ohio fear for their lives when faced with an ambush from a hidden gunman; after a high-speed chase, a fleeing driver has one more surprise for Macomb County Deputies.

Police go into an ambush as they try to rescue an injured pregnant woman.

All police units try and catch the suspects who snatched a baby from the hands of its mother and return the child; an officer makes a routine traffic stop and ends up fighting for his life when he suffers a severe reaction.

The only hope of rescue for a woman trapped in her burning home lies with a local deputy; a trainee officer in the middle of a high-speed pursuit pushes his skill to the limit; a gunman in Ohio sets a trap for officers trying to rescue a family.