After gunshots ring out in rural New Jersey, police discover a beloved father shot to death and a vehicle taken from the premises; investigators must determine if this is a random act of violence or a murder plot spun from an ongoing dispute.

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.

After a local antique shop owner is murdered in a seemingly random home invasion, North Carolina police discover there is more to the story when a web of lies and infidelity are revealed.

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 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.

When suitcases of dismembered remains wash ashore in Virginia Beach, the investigation leads back to New Jersey, where a facade of a perfect family man breaks to reveal the reality.

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 a firebomb attack destroys the home of two sisters, police turn to the neighborhood for answers, but the high-profile case takes an odd turn once detectives realize they have a homicide on their hands and the culprit is much closer to home.

The investigation into the death of a pregnant woman just months after she wed her high school sweetheart reveals secret lives and feuds.

The investigation into the death of a pregnant woman just months after she wed her high school sweetheart reveals secret lives and feuds.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

Investigators work to uncover the truth behind a local church scandal in order to pin down a most unlikely suspect after a young Texas teacher is found axed to death on Friday the 13th.

A couple and their special needs son are savagely murdered in rural New Mexico, leading detectives to uncover long-buried secrets in a tight-knit town.

When a beloved woman in North Carolina is found stabbed to death in her own home, investigators uncover an unnerving history of harassment carried out by a killer blinded by jealousy.

After a respected educator and mother of two is found dead in small-town Alabama, the investigation focuses on fraught family relationships, but the discovery of a dark secret unveils a killer no one saw coming.

The body of a teen is found at a local party spot and theories surrounding her death spread, but the case goes cold for 30 years, until the investigation heats back up.

While investigating the murder of a devoutly religious couple, police uncover dark family secrets, leading them to a shocking suspect.

Authorities are puzzled when a beloved Georgia grandmother is shot execution style, but as the investigation unfolds, a once close-knit family turns against itself.

When a family that runs a beloved vet clinic is gunned down, police investigate disgruntled tenants, a pet owner with an ax to grind and an estranged son; the case stalls until detectives uncover a twisted plot by someone who seemed above suspicion.

After leads dry up in a missing person case, detectives in Ennis,Texas, discover a severed body part at a nearby lake; after confirming the DNA match, they begin to uncover the rippling relationship that led to the death of a beloved father.

A bar owner's body is discovered in a quarry pond; his killer remains a mystery to investigators for years while his increasingly divided family fears one of them must be the murderer.

After the deceased body of a St. Petersburg, Fla., woman is found in an abandoned trailer, investigators search for answers and uncover the dark truth of what happens when someone is pushed too far.

Firefighters discover a body in the wreckage of a rural inferno and uncover a deep-seated dispute between a pair of stepsons and their surrogate father that may be to blame; police uncover stunning footage that reveals the truth behind the attack.

Robbery seems to be a plausible motive when a North Carolina man is found shot to death in a roadside ditch, but the case remains cold for years until a mysterious letter reveals a more sinister motive than anyone could have imagined.

When two women are shot dead in the lobby of a crowded courthouse, investigators find themselves digging into a bizarre custody dispute and bringing them to a determined family that will stop at nothing to get what they want.

Authorities are left stunned when stories of mysticism and conspiracy come to the front while they investigate the disturbing murders of an elderly Vietnamese couple in Texas.

A young father is found executed on a desolate roadway; a heated family feud over custody of a child leads investigators to a shocking conspiracy between a drug dealer, a successful lawyer and a family member.

Wilton Manors, Fla., investigators search for motives after a beloved father is found strangled and battered in his driveway, until an unsuspected confession reveals a complex web of deceit.

A missing persons case spirals down a winding path once detectives learn that a formerly beloved older brother appears to have embezzled money from the family's business; his siblings are hellbent on getting revenge.

In one of the most tragic and brutal crimes in the history of the Great Plains, five teens playing by a campfire are ambushed by a trio of shotgun-wielding brothers; a lone survivor bravely helps detectives hunt down her assailants.

After the burned body of a local man is found in rural Missouri, the homicide goes unsolved for nearly two decades until a twisted murder plot is brought to light.

An immigrant family's American dream turns into a nightmare when a devious sister manipulates her younger valedictorian brother into committing murder; a dark family secret comes to light.

Investigators in Gresham, Ore., are left with a gruesome crime scene, an assailant on the loose and a missing child after the victim of a stabbing is able to call 911 in a last attempt to save her own life.

In this bizarre Midwestern saga; a grudge between a shady district attorney and an eccentric local student turns deadly; investigators work for decades to bring a quartet of brothers to justice.

When two Ghanian immigrants are discovered murdered in their upscale Maryland home, police are confronted with bizarre evidence that motivates them to take a closer look at the mystifying rituals of voodoo.

An ammunition box and fluorescent fibers reveal the betrayal that led to the murder of a millionaire's family.

When a prominent Santa Rosa, Calif., couple is found gunned down at the offices of one of the world's most popular cartoons, detectives are left to untangle the inner workings of a decades-long marriage.

The 1960 kidnapping and murder of brewery heir Adolph Coors III leads to one of the most intense manhunts in U.S. history.

A bag full of evidence recovered from an iced-over river helps to reveal the murderer of a businesswoman in her own shop.

Eighteen years into her prison sentence, Coty Martinez opens up about the multistate killing spree that landed her behind bars; claiming to have been a victim herself, she attempts to explain how she ended up on a dark path.

Eyewitness to real estate agent's murder is put under forensic hypnosis in an attempt to help him recall the killer's face.

Police launch a search for a killer after a teenager returns home to find his father's body in a pool of blood.

A picture-perfect Navy family is shattered when the father is found shot to death after returning home from deployment; detectives are led to believe the crime is a tragic coincidence until a dark plan devised from lust and greed comes to light.

Pathologist examining the death of a politician who was running for re-election finds tiny puncture wounds at the autopsy.

A squashed tomato and a pinpoint reflection of light in a photo help catch a killer.

When a father in Spokane, Wash., is found shot to death in his vehicle, detectives work for years to unmask a vicious killer who isn't afraid to silence witnesses; they eventually uncover a long-kept family secret that breaks the case wide open.

An ATM transaction allows Texas detectives to pinpoint a suspect in the slaying of a teacher, but a shoelace stolen from the victim's home proves to be the tie that binds her killer to the crime.

Ten years after the murder of a rock singer, forensic scientists use evidence collected to finally bring her killer to justice.

After an Air Force recruiter is found dead in a ditch near his Ohio home, authorities chase down several leads until the case culminates with a sting operation worthy of an international spy drama.

After a Michigan State University grad student disappears and is presumed dead, a professor of geological sciences helps police get the dirt on her killer.

When a man's wife kills herself 14 years after his college sweetheart commits suicide, police start to get suspicious.

After gunshots ring out in rural New Jersey, police discover a beloved father shot to death and a vehicle taken from the premises; investigators must determine if this is a random act of violence or a murder plot spun from an ongoing dispute.

A woman gets shot in her driveway; she may have been the victim of a co-worker half her age that she had recently rejected.

A pair of tennis shoes are found near a victim who had been stabbed on the beach, less than ten yards from her hotel.

After a local antique shop owner is murdered in a seemingly random home invasion, North Carolina police discover there is more to the story when a web of lies and infidelity are revealed.

Three fingerprints on a window screen are enough for a print examiner to uncover the work of a serial killer.

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 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.

Eighteen years into her prison sentence, Coty Martinez opens up about the multistate killing spree that landed her behind bars; claiming to have been a victim herself, she attempts to explain how she ended up on a dark path.

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.

A Kentucky man is convicted of murdering his co-worker; the mystery is considered solved until a stunning disclosure years later turns the closed case upside down.

A murder case considered closed by North Dakota detectives is suddenly reopened when a confidential informant comes forward with a tip about an unlikely suspect.

A popular high school student is found murdered in her bed; two students help police solve the case.

A family of four is found dead inside a partially burned Indiana home; when investigators discover that two of the victims died from gunshot wounds, the race is on to determine whether the killer was a stranger or someone closer to home.

A couple and their special needs son are savagely murdered in rural New Mexico, leading detectives to uncover long-buried secrets in a tight-knit town.

An elderly couple and their daughter are found beaten and stabbed in their home in central Texas; from potential family members to disgruntled employees, investigators consider many suspects and leads before finding answers in an unlikely place.

After a respected educator and mother of two is found dead in small-town Alabama, the investigation focuses on fraught family relationships, but the discovery of a dark secret unveils a killer no one saw coming.

Sheriff's deputies find the bodies of a woman and her two sons beaten and covered inside her home.

While investigating the murder of a devoutly religious couple, police uncover dark family secrets, leading them to a shocking suspect.

After a teenage son reports his family shot and stabbed to death, police discover the dead father's prior law enforcement ties made a revenge killing likely; however, as investigators delve deeper, they realize the murders are much more personal.

When a family that runs a beloved vet clinic is gunned down, police investigate disgruntled tenants, a pet owner with an ax to grind and an estranged son; the case stalls until detectives uncover a twisted plot by someone who seemed above suspicion.

A bar owner's body is discovered in a quarry pond; his killer remains a mystery to investigators for years while his increasingly divided family fears one of them must be the murderer.

Firefighters discover a body in the wreckage of a rural inferno and uncover a deep-seated dispute between a pair of stepsons and their surrogate father that may be to blame; police uncover stunning footage that reveals the truth behind the attack.

When two women are shot dead in the lobby of a crowded courthouse, investigators find themselves digging into a bizarre custody dispute and bringing them to a determined family that will stop at nothing to get what they want.

A young father is found executed on a desolate roadway; a heated family feud over custody of a child leads investigators to a shocking conspiracy between a drug dealer, a successful lawyer and a family member.

Young nursing student Michelle Le disappears; something draws her out to her car; as her loved ones launch a very public effort to find Michelle, investigators begin their own methodical search, suspecting she may have been murdered.

A missing persons case spirals down a winding path once detectives learn that a formerly beloved older brother appears to have embezzled money from the family's business; his siblings are hellbent on getting revenge.

In one of the most tragic and brutal crimes in the history of the Great Plains, five teens playing by a campfire are ambushed by a trio of shotgun-wielding brothers; a lone survivor bravely helps detectives hunt down her assailants.

Young women out for a little fun with their friends, Kenia Monge and Lydia Tillman don't know each other, but their stories will become forever intertwined, both of them falling prey to a smooth-talking stranger with a terrifying secret.

An immigrant family's American dream turns into a nightmare when a devious sister manipulates her younger valedictorian brother into committing murder; a dark family secret comes to light.

In this bizarre Midwestern saga; a grudge between a shady district attorney and an eccentric local student turns deadly; investigators work for decades to bring a quartet of brothers to justice.

Steven B. Williams, a DJ with a golden voice, vanishes in a mystery that stretches from California to Montana; the clue to it all is wrapped in a napkin, tucked in a cabinet and hidden in a library.

An ammunition box and fluorescent fibers reveal the betrayal that led to the murder of a millionaire's family.

The 1960 kidnapping and murder of brewery heir Adolph Coors III leads to one of the most intense manhunts in U.S. history.

Jack Jessee was a family man who didn't seem to have an enemy in the world, up until the night he was killed; the case goes cold but a relentless detective is determined to catch Jack's killer.

A bag full of evidence recovered from an iced-over river helps to reveal the murderer of a businesswoman in her own shop.

Eyewitness to real estate agent's murder is put under forensic hypnosis in an attempt to help him recall the killer's face.

A convict is offered a deal as tempting as it is dangerous; he must go undercover in a psychiatric hospital to get information from a suspected serial killer in order to win his freedom, but there's no guarantee he'll get out alive.

Police launch a search for a killer after a teenager returns home to find his father's body in a pool of blood.

Pathologist examining the death of a politician who was running for re-election finds tiny puncture wounds at the autopsy.

Larry McNabney has a thriving career and a wife he adores, but then vanishes; at the center of the twisted mystery, three lives tangle together in a love triangle, including one who hides a secret identity.

A squashed tomato and a pinpoint reflection of light in a photo help catch a killer.

An ATM transaction allows Texas detectives to pinpoint a suspect in the slaying of a teacher, but a shoelace stolen from the victim's home proves to be the tie that binds her killer to the crime.

When Karen Pannell is found stabbed to death, a message scrawled in blood seems like a beacon that could lead detectives to her killer; it takes a dogged forensic specialist with a keen eye to unravel the mystery.

Ten years after the murder of a rock singer, forensic scientists use evidence collected to finally bring her killer to justice.

After a Michigan State University grad student disappears and is presumed dead, a professor of geological sciences helps police get the dirt on her killer.

It was a mystery that stumped investigators for years; a college student disappears after a night out clubbing; her mother thought she was at a sleepover with friends and it takes an eagle-eyed detective to find the truth buried in a pile of lies.

When a man's wife kills herself 14 years after his college sweetheart commits suicide, police start to get suspicious.

A woman gets shot in her driveway; she may have been the victim of a co-worker half her age that she had recently rejected.

A young mom, married to her high school sweetheart, vanishes; did she leave her family to start a new life or was there another reason for her disappearance; decades later her grown son faces a dark truth at the core of this mystery.

A pair of tennis shoes are found near a victim who had been stabbed on the beach, less than ten yards from her hotel.

Three fingerprints on a window screen are enough for a print examiner to uncover the work of a serial killer.

She was a dancer who married a dashing photographer; they seemed to have the picture-perfect life -- until the bone-chilling night she disappeared; in a case filled with twists, could the victim help solve her own murder.

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.

Eighteen years into her prison sentence, Coty Martinez opens up about the multistate killing spree that landed her behind bars; claiming to have been a victim herself, she attempts to explain how she ended up on a dark path.

A former homecoming queen taking her first steps into adult life is brutally murdered; the investigation centers on two men and a mysterious black bag that seems to come out of nowhere.

A love triangle leads to years of stalking, property destruction, threats and murder.

A love triangle leads to years of stalking, property destruction, threats and murder.

A mother of two who vanishes during a storm turns out to be a victim of something sinister.

A family of four is found dead inside a partially burned Indiana home; when investigators discover that two of the victims died from gunshot wounds, the race is on to determine whether the killer was a stranger or someone closer to home.

An elderly couple and their daughter are found beaten and stabbed in their home in central Texas; from potential family members to disgruntled employees, investigators consider many suspects and leads before finding answers in an unlikely place.

Sheriff's deputies find the bodies of a woman and her two sons beaten and covered inside her home.

After a teenage son reports his family shot and stabbed to death, police discover the dead father's prior law enforcement ties made a revenge killing likely; however, as investigators delve deeper, they realize the murders are much more personal.

The Colegroves are beloved in their small town, but when they're brutally murdered in what appears to be a targeted attack, a bitter dispute within their family is revealed, pitting the surviving brothers against each other.

A mother is found savagely murdered in her upscale home, leaving a father and son to blame each other; their airtight alibis lead detectives to a murder plot involving an estranged sibling with nothing to lose.

A horrifying hit-and-run leaves two women near death and their families blaming each other; the search for the truth leads detectives on a massive hunt for a father who can't bear to witness his daughter's freedom.

When an inferno leaves four family members dead, investigators discover a business dispute between two immigrant families that may be at the root of the incident; they are confronted with a pair of brothers who refuse to take no for an answer.

A gruesome Thanksgiving triple murder case lays bare a family's violent past, including a son and daughter each with a score to settle; as the years pass and the case goes unsolved, three families desperately fight for the truth and justice.

Young nursing student Michelle Le disappears; something draws her out to her car; as her loved ones launch a very public effort to find Michelle, investigators begin their own methodical search, suspecting she may have been murdered.

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.

Young women out for a little fun with their friends, Kenia Monge and Lydia Tillman don't know each other, but their stories will become forever intertwined, both of them falling prey to a smooth-talking stranger with a terrifying secret.

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.

A shooter attacks a family's Thanksgiving, leaving four dead and more wounded; a mother is shot to death while driving her sons home from a Thanksgiving celebration.

Steven B. Williams, a DJ with a golden voice, vanishes in a mystery that stretches from California to Montana; the clue to it all is wrapped in a napkin, tucked in a cabinet and hidden in a library.

Jack Jessee was a family man who didn't seem to have an enemy in the world, up until the night he was killed; the case goes cold but a relentless detective is determined to catch Jack's killer.

A Thanksgiving dinner turns into one family's last when a killer stabs and dismembers a couple; a prominent couple is found murdered in their home on Thanksgiving night.

A convict is offered a deal as tempting as it is dangerous; he must go undercover in a psychiatric hospital to get information from a suspected serial killer in order to win his freedom, but there's no guarantee he'll get out alive.

Larry McNabney has a thriving career and a wife he adores, but then vanishes; at the center of the twisted mystery, three lives tangle together in a love triangle, including one who hides a secret identity.

An unusual 911 call leaves investigators sorting fact from fiction in the search for a missing mother; while police begin to expect the worst, an illicit affair at the heart of the victim's family reveals a daughter with something to hide.

When Karen Pannell is found stabbed to death, a message scrawled in blood seems like a beacon that could lead detectives to her killer; it takes a dogged forensic specialist with a keen eye to unravel the mystery.

When a couple is gunned down in front of their three young boys, a web of lies and custody battle lead detectives to a suspect; with one son's future at stake, they travel to a remote mountain to gather evidence they need to catch the killer.

It was a mystery that stumped investigators for years; a college student disappears after a night out clubbing; her mother thought she was at a sleepover with friends and it takes an eagle-eyed detective to find the truth buried in a pile of lies.

While out deer hunting, a young father of two is murdered in the woods; 25 years later, a revelation sparks a new investigation and leads police to uncover an unthinkable conspiracy between those closest to the victim.

A young mom, married to her high school sweetheart, vanishes; did she leave her family to start a new life or was there another reason for her disappearance; decades later her grown son faces a dark truth at the core of this mystery.

When a 60-year-old woman vanishes without warning, investigators discover a family blended from multiple marriages that is simmering with secrets and grudges that may have boiled over into murder.

She was a dancer who married a dashing photographer; they seemed to have the picture-perfect life -- until the bone-chilling night she disappeared; in a case filled with twists, could the victim help solve her own murder.

When a missing young mother turns up murdered on the outskirts of New York City, it confirms a close-knit family's worst fears; the investigation is hindered by a series of lies, before a secret affair is uncovered, turning brothers into adversaries.

A former homecoming queen taking her first steps into adult life is brutally murdered; the investigation centers on two men and a mysterious black bag that seems to come out of nowhere.

When Wendy Ratte, a free-spirited mother of two, goes missing, police go under cover to crack the case.

When Wendy Ratte, a free-spirited mother of two, goes missing, police go under cover to crack the case.

The homicide of private first class soldier and young mother Karlyn Ramirez; a glimpse into the FBI's crime lab and an in-depth look at how multiple agencies uncovered a plot that spanned several states and prompted suspicions of espionage.

When three generations of a family are murdered inside their Bakersfield home, police find their main suspect was over 2,000 miles away at the time; it will take the combined efforts of law enforcement and an entomologist to deliver justice.

When beloved ER nurse and mother Becky Bliefnick is found shot to death in her bathroom in Quincy, Ill., residents fear a killer has come to town; detectives discover this seemingly perfect Midwestern community has monsters of its own.

In a burned-out cabin in Northern California, firefighters find the remains of the Buchanan family; when investigators discover the victims were shot and the fire was set to cover it up, they find the killer hiding in plain sight.

Popular high school senior Chris Daigle mysteriously disappears from Missouri City, Texas; for nearly a decade, his mother will stop at nothing to get answers while keeping friends close but enemies closer.

When two families in different neighborhoods are brutally murdered within a week of each other, the city of Richmond goes into an uproar; with only limited leads, police face mounting pressure to find the killers before they strike again.

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.

When a house fire reveals the violent murder of an entire family, the town of Fishkill is shaken; state investigators dig into the victims' past and uncover disturbing connections while using the latest technology to find the killers.

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.

A woman is found stabbed to death in her own home; when police learn of her husband's brutal family history, a matriarch bludgeoned with an axe, an incestuous affair, and a vicious inheritance battle, they need to find out if there's a connection.

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.

A retired police officer fears his missing daughter has been murdered, kickstarting an investigation where the killer appears to be one step ahead; a pair of twins hold a secret that threatens to tear apart their close bond.

An Ivy League student and a music producer's criminal activities are discovered when a failed drug deal leads to murder.

An affluent family at war with each other for over a decade, find themselves at the center of a murder investigation when a beloved uncle is found dead. Police unravel a conspiracy involving a wayward son and a counterfeit secret agent.

The love affair between a police officer and a criminal leads to murder.

A young mother's disappearance sparks a bitter division among those she leaves behind; as the infighting intensifies, detectives scramble to find out what happened to her, only to discover that a conspiracy to kill is fresh underway.

When a missing man's bullet-riddled body is found off the side of a road, police must dig into his complicated past to uncover the truth; the case hits a standstill until information about the victim's car comes to light and reveals a toxic romance.

Houston police search for a serial killer preying on young women until a local man's DNA finally reveals the culprit; upon his arrest, the killer's sister and daughter learn his true identity.

A gruesome Thanksgiving triple murder case lays bare a family's violent past, including a son and daughter each with a score to settle; as the years pass and the case goes unsolved, three families desperately fight for the truth and justice.

The ex-girlfriend of the self-proclaimed Crossbow Cannibal reveals the mental and physical abuse she endured for years at the hands of one of the U.K.'s most heinous serial killers.

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.

Spree killer Joanne Dennehy's daughter Shianne shares how she has struggled to come to terms with the realities of being the child of Britain's most dangerous woman.

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.

Peter Tobin raped and murdered Angelika Kluk in 2006, and with the help of his ex-wife, Cathy Wilson, a groundbreaking investigation unearthed more victims and revealed him to be a serial killer.

A shooter attacks a family's Thanksgiving, leaving four dead and more wounded; a mother is shot to death while driving her sons home from a Thanksgiving celebration.

For over a decade, El Chapo evaded authorities but one man was determined to catch the infamous kingpin; Former DEA agent Andrew Hogan comes out of the shadows to detail his search and capture with never-before-seen videos and photographs.

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 Thanksgiving dinner turns into one family's last when a killer stabs and dismembers a couple; a prominent couple is found murdered in their home on Thanksgiving night.

The long-lost confession tapes of the man who claimed to be the Boston Strangler have been uncovered. Suppressed for decades, these exclusive tapes reignite doubts about his confession, inspiring experts to reexamine the evidence and suspects.

An unusual 911 call leaves investigators sorting fact from fiction in the search for a missing mother; while police begin to expect the worst, an illicit affair at the heart of the victim's family reveals a daughter with something to hide.

When a couple is gunned down in front of their three young boys, a web of lies and custody battle lead detectives to a suspect; with one son's future at stake, they travel to a remote mountain to gather evidence they need to catch the killer.

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.

While out deer hunting, a young father of two is murdered in the woods; 25 years later, a revelation sparks a new investigation and leads police to uncover an unthinkable conspiracy between those closest to the victim.

When a 60-year-old woman vanishes without warning, investigators discover a family blended from multiple marriages that is simmering with secrets and grudges that may have boiled over into murder.

Lies, deception and a love triangle lead to the murder of a wealthy American on a road in Mexico.

When a missing young mother turns up murdered on the outskirts of New York City, it confirms a close-knit family's worst fears; the investigation is hindered by a series of lies, before a secret affair is uncovered, turning brothers into adversaries.

Lead investigators and family members speak about the murder of Colorado mother Kelsey Berreth, whose disappearance made national headlines after she was last seen grocery shopping on Thanksgiving in 2018.

Lead investigators and family members speak about the murder of Colorado mother Kelsey Berreth, whose disappearance made national headlines after she was last seen grocery shopping on Thanksgiving in 2018.

When the mysterious death of a 23-year-old mother in New Mexico goes unsolved, her family searches for answers.

When beloved ER nurse and mother Becky Bliefnick is found shot to death in her bathroom in Quincy, Ill., residents fear a killer has come to town; detectives discover this seemingly perfect Midwestern community has monsters of its own.

Popular high school senior Chris Daigle mysteriously disappears from Missouri City, Texas; for nearly a decade, his mother will stop at nothing to get answers while keeping friends close but enemies closer.

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.

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.

An Ivy League student and a music producer's criminal activities are discovered when a failed drug deal leads to murder.

The love affair between a police officer and a criminal leads to murder.

When a missing man's bullet-riddled body is found off the side of a road, police must dig into his complicated past to uncover the truth; the case hits a standstill until information about the victim's car comes to light and reveals a toxic romance.

Houston police search for a serial killer preying on young women until a local man's DNA finally reveals the culprit; upon his arrest, the killer's sister and daughter learn his true identity.

The ex-girlfriend of the self-proclaimed Crossbow Cannibal reveals the mental and physical abuse she endured for years at the hands of one of the U.K.'s most heinous serial killers.

Spree killer Joanne Dennehy's daughter Shianne shares how she has struggled to come to terms with the realities of being the child of Britain's most dangerous woman.

Peter Tobin raped and murdered Angelika Kluk in 2006, and with the help of his ex-wife, Cathy Wilson, a groundbreaking investigation unearthed more victims and revealed him to be a serial killer.

For over a decade, El Chapo evaded authorities but one man was determined to catch the infamous kingpin; Former DEA agent Andrew Hogan comes out of the shadows to detail his search and capture with never-before-seen videos and photographs.

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.

The long-lost confession tapes of the man who claimed to be the Boston Strangler have been uncovered. Suppressed for decades, these exclusive tapes reignite doubts about his confession, inspiring experts to reexamine the evidence and suspects.

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.

Lies, deception and a love triangle lead to the murder of a wealthy American on a road in Mexico.

A son uncovers a dark family conspiracy when he questions his mother following a man's apparent suicide.

A son uncovers a dark family conspiracy when he questions his mother following a man's apparent suicide.

When Ohio mother Heather Bogle goes missing, a detective identifies multiple suspects, until he himself comes under scrutiny for his investigation.