A bullet-riddled car, a missing driver, and no witnesses, an ambush or a random attack; the clue was something so tiny, it was measured in millionths of a meter.

Teenager is found half-naked with her throat slit; a single foreign hair found on her thumb may finger the killer.

A contractor's death leads to another death, three arrests and a shocking motive.

Two women who lived in the same apartment complex were brutally murdered; the similarities of the crime scenes led police to believe they were dealing with a serial killer who hated women, and they had to find him before he struck again.

Weeks after a student vanishes, the body of an unknown female is found in the ashes of a fire 700 miles away; an alert policeman realizes the crimes could be connected.

A family is willing to go to any lengths to get what it wants.

Investigators face a growing list of suspects after a beautiful flight attendant is brutally murdered in her own home.

The assistant manager of the restaurant had been stabbed to death; police knew why he'd been killed: $8,000 was missing from the safe. As to who was responsible, his family and friends couldn't even imagine who'd want to hurt him.

A young wife finds her husband dead, but the police uncover a web of lies and murder.

Florida authorities rely on DNA evidence to try to nail the killer of a woman who was abducted from her late-night job at a convenience store, raped and strangled.

A wild fire in a secluded parking lot leads police to discover a dreadful homicide, with the suspect's image caught by security cameras.

Convicted of killing two taxi drivers, Chaz Blackshear returns nine years later to share new details in what led to a brutal double murder; his accomplice and then-girlfriend, Danielle Hudson, reveals her role in the crimes for the first time.

After a prominent Arizona surgeon is found stabbed to death outside his office, investigators uncover an unlikely suspect with deep pockets and an even deeper hatred for the doctor.

Police don't have a basis for comparison to match shoe impressions, blood drops and DNA evidence from a murder scene.

A young man reveals how cruel his mother was years after his father was tragically shot.

A masked gunman kills two members of a family and wounds two others after they interrupt his burglary at their upscale suburban home.

Retired Detective Ken Mains teams up with an inmate on death row to expose the secrets of unknown serial killer Joseph Naso: while bringing closure to a victim's family, Ken uncovers that Naso likely killed many more women than police ever thought.

A veteran cop falls for a beloved grandma he hopes to spend the rest of his life with, but when a home cooked meal sends them both racing to the hospital… this granny's gravy, and her sordid past, are brought under scrutiny.

Morgan Fox, a young mother, is shot dead outside her home in North Canton, Ohio; in the search for her killer, investigators discover a toxic workplace, a twisted obsession, and a killer relationship.

A charismatic pastor's dark secrets come to light after his wife's mysterious death; the case shattered a congregats and exposes the cost of their unshakable trust.

When 18-year-old Anjelica Hadsell disappears, the investigation uncovers a sinister betrayal.

The investigation into a newlywed's murder starts with a widow, ends with a possible serial killer.

An expectant mother, Samantha Dean, is shot to death in an abandoned parking lot in Bastrop, Texas; as detectives dig deeper, they discover a diabolical plan, a shocking betrayal and a killer relationship.

In Marietta, Ga., a businessman is savagely murdered in his home; the violent and personal attack leads the detectives to look for the killer among those who knew him best.

When a 71-year-old man is found shot dead in a field, investigators suspect his killing is the result of a robbery; as new evidence surfaces, detectives develop a theory to explain his death and only a voice from the grave can prove it.

A woman's sudden death in a Detroit hotel unravels a dark web of secrets, lies and deadly coincidences that hint at something far more sinister.

The holiday season screeches to a halt when six members of the Anderson family are discovered to have been gunned down in their home; detectives work closely with family friends to track down the shocking murderer.

The Ortega family's annual Christmas Eve party is destroyed when a man dressed as Santa, wielding handguns and a homemade flame-thrower opens fire; detectives are led down a terrifying path that leads them to a sociopath.

A holiday is ruined when a couple is gunned down in their bed during what looks like a brutal home invasion, but police soon discover the true motive for the double homicide is a shocking tale of deception and betrayal.

Firefighters respond to a house fire and discover three gunshot victims inside; authorities pursue the heavily armed murderer through Christmas.

A murder in broad daylight causes the authorities to question whether it was an act of self-defense or murder.

Years after a deadly home invasion, a Texas woman faces new questions about the death of her mother.

A dead body is found in a small town in Texas and one mother may be facing death.

A small town church is shocked when one member is shot and another stands accused.

A woman is stabbed a hundred times and her body positioned in a suggestive manner. This could be a hate crime against women.

The trial of Scott Peterson who was convicted for the murder of his wife and unborn child.

Police are able to create a composite sketch of a man burnt beyond recognition. But tracking the killer is more challenging.

By cutting a strand of a murdered man's hair into sections, forensics reveal a record of his last six months alive, and find he was frequently ingesting huge amounts of arsenic.

A bullet-riddled car, a missing driver, and no witnesses, an ambush or a random attack; the clue was something so tiny, it was measured in millionths of a meter.

Teenager is found half-naked with her throat slit; a single foreign hair found on her thumb may finger the killer.

Self-named killer B.T.K. murders 10 people over 17 years, all while taunting Wichita, Kan., police and media before being exposed as family man and churchgoer Dennis Rader; in an exclusively acquired interview, he reveals what drove him to do it.

Two women who lived in the same apartment complex were brutally murdered; the similarities of the crime scenes led police to believe they were dealing with a serial killer who hated women, and they had to find him before he struck again.

Weeks after a student vanishes, the body of an unknown female is found in the ashes of a fire 700 miles away; an alert policeman realizes the crimes could be connected.

Investigators face a growing list of suspects after a beautiful flight attendant is brutally murdered in her own home.

From 1993 to 2000, the quiet community of Fort Smith, Ark., is terrorized by a twisted serial killer, a deranged necrophiliac who targets elderly and vulnerable women; he becomes known as The River Valley Killer.

The assistant manager of the restaurant had been stabbed to death; police knew why he'd been killed: $8,000 was missing from the safe. As to who was responsible, his family and friends couldn't even imagine who'd want to hurt him.

Florida authorities rely on DNA evidence to try to nail the killer of a woman who was abducted from her late-night job at a convenience store, raped and strangled.

A wild fire in a secluded parking lot leads police to discover a dreadful homicide, with the suspect's image caught by security cameras.

After a prominent Arizona surgeon is found stabbed to death outside his office, investigators uncover an unlikely suspect with deep pockets and an even deeper hatred for the doctor.

Nurse Charles Cullen is one of America's most prolific serial killers; police say he may have murdered up to 400 victims; Cullen claims he acted mercifully to end their pain; an in-depth look into the case reveals the truth behind his motives.

Police don't have a basis for comparison to match shoe impressions, blood drops and DNA evidence from a murder scene.

A masked gunman kills two members of a family and wounds two others after they interrupt his burglary at their upscale suburban home.

Retired Detective Ken Mains teams up with an inmate on death row to expose the secrets of unknown serial killer Joseph Naso: while bringing closure to a victim's family, Ken uncovers that Naso likely killed many more women than police ever thought.

A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to reexamine the mysterious death of Las Vegas casino magnate Ted Binion.

A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to reexamine the mysterious death of Las Vegas casino magnate Ted Binion.

A teenage mom and her friends get caught up in a bizarre murder case.

Twenty-year-old Tiffanie Adams is eight months pregnant when she suddenly disappears; to solve the mystery, police must expose toxic relationships and deadly secrets.

When devoted young mother Sara Summer vanishes from a small Tennessee town, the investigation into her life exposes a world of romance, lies and a fatal betrayal at the hands of a man she trusted.

When a Navy officer succumbs to a mysterious illness after months at sea, nothing makes sense, until an autopsy yields a stunning revelation; all roads lead to dead ends, until they zero in on an unlikely target.

The joy of Christmas looks bright for a doting Oklahoma mother, but her kids wake up to a living nightmare when she's inexplicably gone; as investigators track two suspects down a deceitful road, an incendiary break lures the killer out of the dark.

A devoted husband, military man, and father of three calls the police with a chilling confession: he's shot his wife; what first appears to be a straightforward homicide soon unravels into something far more complex.

A beloved mother is found brutally murdered near the military town of North Pole, Alaska, and soon four more girls meet the same fate.

On Christmas Eve in a quiet town, elderly couple Bob and Idella Young are brutally slain at home; a bloody glove found at the crime scene has the killer's DNA, but no one matches the sample.

Two days after Christmas a mass shooting terrorizes a small town; after killing two people and wounding many more the gunman is taken into custody; when police search for answers they uncover the worst family massacre in US history.

Just before Christmas, the body of a young mother is found strangled inside a burning car in a quiet Minneapolis suburb and detectives suspect that she was killed by someone very close to her.

Just after Christmas, a young couple is found murdered inside their Florida home; neighbors can't imagine the couple had been in the area long enough to make a mortal enemy; police uncover deeply personal details, and soon expose a deadly secret.

Colleen Stan relives what it was like to be kidnapped and imprisoned in a box, and how she escaped.

A car crashes into a tree killing a man.

The stories of five women who suffered vile abuse while trapped inside the home of a prolific serial killer from which they eventually escaped.

A murder investigation which pits a son against his mother sheds new light on a previously unsolved death.

The trial of Scott Peterson who was convicted for the murder of his wife and unborn child.

The celebrity murder that shocked a nation; one of the country's leading comedians is gunned down in his own home.

Self-named killer B.T.K. murders 10 people over 17 years, all while taunting Wichita, Kan., police and media before being exposed as family man and churchgoer Dennis Rader; in an exclusively acquired interview, he reveals what drove him to do it.

A pretty blonde survives the attack that kills her husband.

From 1993 to 2000, the quiet community of Fort Smith, Ark., is terrorized by a twisted serial killer, a deranged necrophiliac who targets elderly and vulnerable women; he becomes known as The River Valley Killer.

After a family is found massacred inside their Santa Claus, Georgia home, the hunt for their killer hinges on the eyewitness testimony of the three young surviving daughters.

When a young man and woman are found shot execution-style in a mall parking lot in the early hours of Christmas Eve, investigators believe a love triangle might have led to these brutal murders.

Nurse Charles Cullen is one of America's most prolific serial killers; police say he may have murdered up to 400 victims; Cullen claims he acted mercifully to end their pain; an in-depth look into the case reveals the truth behind his motives.

Firefighters respond to a house fire and discover three gunshot victims inside; authorities pursue the heavily armed murderer through Christmas.

In an exclusive interview, Emma Coronel, wife of drug lord Joaquín "El Chapo" Guzmán, reveals the seduction and danger of life with a criminal mastermind, while confronting the ugliest truths of his actions and grappling with her own accountability.

Bill Noguera gets a written confession from serial killer Joseph Naso, cracking open another cold case from his List of 10; Detective Mains uncovers more potential victims from an infamous case in New York.

When a pathologist is found murdered in his home, the investigation reveals simmering jealousies and a love triangle.

When a pathologist is found murdered in his home, the investigation reveals simmering jealousies and a love triangle.

Firefighters make a grisly discovery while responding to a house fire in a Toronto suburb; as a family searches for answers, investigators launch an elaborate undercover sting that reveals a devious murder-for-hire plot and the ultimate betrayal.

A newly single mother of two vanishes after going on a date with an old high school friend she connected with on Facebook; investigators race against the clock to reveal the true identity of the mystery man.

After a body is found in the snow, clues lead to an ex-girlfriend and a secret marriage.

A bomb rocks South Chicago killing Mark Toney, investigators dig beneath the rubble to expose a violent, seductive con game and a shockingly deceitful relationship.

Erin reports a brutal attack on her friend turned lover, but a secret relationship and allegations of abuse add a surprising twist to the investigation.

The joy of Christmas looks bright for a doting Oklahoma mother, but her kids wake up to a living nightmare when she's inexplicably gone; as investigators track two suspects down a deceitful road, an incendiary break lures the killer out of the dark.

A best friend's betrayal reveals a woman's plot to murder her husband; shocking secrets of witchcraft, poison and juicy neighborhood affairs.

A beloved mother is found brutally murdered near the military town of North Pole, Alaska, and soon four more girls meet the same fate.

Amber finds her home ransacked and the police find her fiancé dead in his bed; what at first seems like a home invasion gone wrong turns into a twisted situation as melting snow reveals a clue.

A beloved couple is found murdered inside their home on Christmas morning; a single palm print is left behind; investigators work tirelessly to match the print to a suspect, until a letter from prison takes the case on an unexpected course.

After her husband is shot, Teresa sends authorities on the hunt for two gunmen but the evidence points to a killer closer to home.

Dayton, Ohio, is terrorized over the Christmas holiday as a string of brutal shootings have the residents wondering if they could be next.

Two poisonous love stories; a wealthy socialite and a Midwestern woman who have one thing in common.

Beloved Christmas tree farmers are executed in the front seat of their car and a manhunt for their killer is launched that keeps investigators on the case for over three decades before justice is served.

The suspicious death of Eric leaves the police asking if it was a suicide, an intruder, or if it was a girlfriend with a deadly secret.

After responding to a robbery at a sporting goods store on Christmas Eve, an Irving, Texas police officer is gunned down in cold blood.

Lynette flees the country when her ex-boyfriend is shot during a custody dispute; investigators face many challenges.

A mysterious disappearance leads police to a woman pushing a trash can full of body parts down the street.

A car crashes into a tree killing a man.

A 13-year-old confesses to murder, but police suspect he's being manipulated by his half-sister.

A murder investigation which pits a son against his mother sheds new light on a previously unsolved death.

When remains of a dead body are discovered under a trailer, the police suspect that they belong to a man who disappeared 5 years earlier.

The celebrity murder that shocked a nation; one of the country's leading comedians is gunned down in his own home.

The investigation into a deadly home invasion reveals just how far a father would go for his daughter.

A pretty blonde survives the attack that kills her husband.

After a family is found massacred inside their Santa Claus, Georgia home, the hunt for their killer hinges on the eyewitness testimony of the three young surviving daughters.

When a 79 year-old woman goes missing, her daughter blames dementia but the rest of her family suspects someone much closer to home.

When a young man and woman are found shot execution-style in a mall parking lot in the early hours of Christmas Eve, investigators believe a love triangle might have led to these brutal murders.

A church congregation is shocked when a deadly home invasion turns out to be part of a scandalous web of sex, lies and greed.

Firefighters respond to a house fire and discover three gunshot victims inside; authorities pursue the heavily armed murderer through Christmas.

The search for a missing man leads to a disturbing discovery years later deep in his wife's closet.

In an exclusive interview, Emma Coronel, wife of drug lord Joaquín "El Chapo" Guzmán, reveals the seduction and danger of life with a criminal mastermind, while confronting the ugliest truths of his actions and grappling with her own accountability.

A journalist embarks on a 40-year quest to uncover the motives of one of the most prolific spree killers in history; the result is 500 hours of secret tapes and an obsession that blurs the line between reporter and subject.

More than two decades after a woman is murdered in what appears to be a burglary gone wrong, a detective finds information that unlocks the mystery of what actually happened.

More than two decades after a woman is murdered in what appears to be a burglary gone wrong, a detective finds information that unlocks the mystery of what actually happened.

Law enforcement officers investigate a string of deadly shootings targeting women in the border city of Laredo, Texas.

After trumpet player Scott Sessions fails to show up for a scheduled gig, his family learns his body was abandoned in the remote Colorado Rockies; as the investigation narrows in on two suspects, a second murder catches police by surprise.

After a body is found in the snow, clues lead to an ex-girlfriend and a secret marriage.

When young mother and paramedic Annamarie Cochrane Rintala is found dead at the bottom of her basement stairs, it takes four trials and 13 years before justice is served.

Erin reports a brutal attack on her friend turned lover, but a secret relationship and allegations of abuse add a surprising twist to the investigation.

A young man from small town Indiana heads to Japan where he falls for a beautiful woman; then, they are caught up in one of the biggest natural disasters in history.

A best friend's betrayal reveals a woman's plot to murder her husband; shocking secrets of witchcraft, poison and juicy neighborhood affairs.

A toddler is shot in the head and left for dead; despite the odds, she stuns everyone with her will to survive, while a detective vows to crack the case, no matter how long it takes.

Amber finds her home ransacked and the police find her fiancé dead in his bed; what at first seems like a home invasion gone wrong turns into a twisted situation as melting snow reveals a clue.

When Debbie Hawk vanishes, her friends and family are left searching for answers; investigators discover that Debbie was planning to divulge secrets and wonder if she has been silenced as a result.

After her husband is shot, Teresa sends authorities on the hunt for two gunmen but the evidence points to a killer closer to home.

A U.S. Air Force captain who is deployed overseas for long stretches of time finds himself caught in the crossfire resulting from a love triangle at home.

Two poisonous love stories; a wealthy socialite and a Midwestern woman who have one thing in common.

A beloved chef and cooking instructor is found shot to death at work, and investigators are left baffled; but when a loved one's strange behavior draws their attention, detectives discover the killer has been right in front of their eyes.

The suspicious death of Eric leaves the police asking if it was a suicide, an intruder, or if it was a girlfriend with a deadly secret.

An ailing man isn't seen for weeks, and his family and friends grow concerned; when his wife is confronted about her changing stories, her revelation shocks the community, and everyone who knows and loves her as a dedicated grandmother.

Lynette flees the country when her ex-boyfriend is shot during a custody dispute; investigators face many challenges.

A Florida woman is shot in her vacation rental, and the hunt for her killer connects back to a murdered Minnesota farmer; clues point to a doting grandmother living a double life, who then leads authorities on a multi-state chase.

Frank is gunned down; police discover a sick plot of lies and manipulation, centered on their ongoing custody battle.

An Oregon grandmother found wounded on the roadside tells rescuers that her husband is missing after a boat sale went awry; a manhunt ensues but as authorities investigate, granny's wild story unravels to reveal a darker truth.

A missing person case goes cold until a nervous breakdown leads to a confession.

A California Granny is thought of as a Mother Teresa to the downtrodden thanks to the boarding house she runs; but when a social worker raises fears for a missing client, investigators find that Granny's carefully tended garden hides horrors.

A successful daycare owner finds her husband dead after an alleged home invasion; police discover a shocking double life and a murder plan full of possible accomplices.

A family searches for a missing teenager only to find out she's been betrayed by her closest friends.

An Army vet is found dead on his farm; it first looks like the tragic suicide of a troubled veteran, but police uncover a sprawling cover-up and two grannies whose dueling stories collide in a troubling she said, she said murder mystery.

The murder of a young father may be the result of a drug hit or a personal vendetta.

A veteran cop falls for a beloved grandma he hopes to spend the rest of his life with, but when a home cooked meal sends them both racing to the hospital… this granny's gravy, and her sordid past, are brought under scrutiny.

A 39-year marriage ends in a brutal death, bringing to light a tale of adultery and murder.

A Mother's Nightmare; Special episode of "Cold Justice" featuring insights from Kelly Siegler and behind-the-scenes facts.

Two cold cases leave the victim's families wondering if they will ever see justice.

What seems like two unrelated events, a truck inferno and a missing person report, collide in a deadly case of mistaken identity.

A pretty nursing student disappears and the investigation uncovers a deadly feud with her former best friend.

When a 41-year-old math teacher suddenly dies at home without an official cause of death, investigators find his new wife holds the clues.

When a 79 year-old woman goes missing, her daughter blames dementia but the rest of her family suspects someone much closer to home.

A Mother's Nightmare; Special episode of "Cold Justice" featuring insights from Kelly Siegler and behind-the-scenes facts.

A church congregation is shocked when a deadly home invasion turns out to be part of a scandalous web of sex, lies and greed.

What seems like two unrelated events, a truck inferno and a missing person report, collide in a deadly case of mistaken identity.

The search for a missing man leads to a disturbing discovery years later deep in his wife's closet.

A journalist embarks on a 40-year quest to uncover the motives of one of the most prolific spree killers in history; the result is 500 hours of secret tapes and an obsession that blurs the line between reporter and subject.

An investigation into the fatal shooting of a husband of a popular teacher's aide uncovers infidelity, teenage hit men and an airtight alibi.

When Bonnie Craig is found dead, police collect DNA but it doesn't match anyone in the system; twelve years later, there is a hit but the man is thousands of miles away; turns out, prosecutors would need more than DNA to convict a killer.

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies; interviews about the prominent family's dark secrets.

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies; interviews about the prominent family's dark secrets.

After Tahereh Ghassemi disappears from the Louisiana home she shares with her adult son, detectives discover that she'd recently come into a great deal of money; the investigation reveals an astonishing plot with international implications.

After trumpet player Scott Sessions fails to show up for a scheduled gig, his family learns his body was abandoned in the remote Colorado Rockies; as the investigation narrows in on two suspects, a second murder catches police by surprise.

When young mother and paramedic Annamarie Cochrane Rintala is found dead at the bottom of her basement stairs, it takes four trials and 13 years before justice is served.

A young man from small town Indiana heads to Japan where he falls for a beautiful woman; then, they are caught up in one of the biggest natural disasters in history.

A toddler is shot in the head and left for dead; despite the odds, she stuns everyone with her will to survive, while a detective vows to crack the case, no matter how long it takes.

When Debbie Hawk vanishes, her friends and family are left searching for answers; investigators discover that Debbie was planning to divulge secrets and wonder if she has been silenced as a result.

A U.S. Air Force captain who is deployed overseas for long stretches of time finds himself caught in the crossfire resulting from a love triangle at home.

A beloved chef and cooking instructor is found shot to death at work, and investigators are left baffled; but when a loved one's strange behavior draws their attention, detectives discover the killer has been right in front of their eyes.

An ailing man isn't seen for weeks, and his family and friends grow concerned; when his wife is confronted about her changing stories, her revelation shocks the community, and everyone who knows and loves her as a dedicated grandmother.

A Florida woman is shot in her vacation rental, and the hunt for her killer connects back to a murdered Minnesota farmer; clues point to a doting grandmother living a double life, who then leads authorities on a multi-state chase.

An Oregon grandmother found wounded on the roadside tells rescuers that her husband is missing after a boat sale went awry; a manhunt ensues but as authorities investigate, granny's wild story unravels to reveal a darker truth.

A California Granny is thought of as a Mother Teresa to the downtrodden thanks to the boarding house she runs; but when a social worker raises fears for a missing client, investigators find that Granny's carefully tended garden hides horrors.

An Army vet is found dead on his farm; it first looks like the tragic suicide of a troubled veteran, but police uncover a sprawling cover-up and two grannies whose dueling stories collide in a troubling she said, she said murder mystery.

A veteran cop falls for a beloved grandma he hopes to spend the rest of his life with, but when a home cooked meal sends them both racing to the hospital… this granny's gravy, and her sordid past, are brought under scrutiny.

A Mother's Nightmare; Special episode of "Cold Justice" featuring insights from Kelly Siegler and behind-the-scenes facts.

What seems like two unrelated events, a truck inferno and a missing person report, collide in a deadly case of mistaken identity.

When a 41-year-old math teacher suddenly dies at home without an official cause of death, investigators find his new wife holds the clues.

A Mother's Nightmare; Special episode of "Cold Justice" featuring insights from Kelly Siegler and behind-the-scenes facts.

What seems like two unrelated events, a truck inferno and a missing person report, collide in a deadly case of mistaken identity.

The death of a state trooper leads to an all-out hunt for his killer, but the evidence points to his new wife and a big secret.

An investigation into the fatal shooting of a husband of a popular teacher's aide uncovers infidelity, teenage hit men and an airtight alibi.

When Bonnie Craig is found dead, police collect DNA but it doesn't match anyone in the system; twelve years later, there is a hit but the man is thousands of miles away; turns out, prosecutors would need more than DNA to convict a killer.

The family members of murdered California entrepreneur Chris Smith speak out; interviews with investigators, Smith's former colleague, and prosecutor Matt Murphy.

The family members of murdered California entrepreneur Chris Smith speak out; interviews with investigators, Smith's former colleague, and prosecutor Matt Murphy.

A mother searches for answers in the unsolved murder of her 14-year-old daughter until new DNA technology changes everything.