Investigation Discovery

Rogelio Morales sweeps Margarita Sanchez Lemus off of her feet. Behind his winning smile, lurks a monster who will soon show his true colours.

On the surface, police officer Albert Pacheco and his wife Cathy live a charmed life. But this seemingly-perfect household hides something evil.

Debra believes faith will help Randy overcome his past. After they marry, his violent side takes over. She escapes, but the next woman isn't lucky.

Natalia details the horrifying multi-faceted conspiracy by the Barnetts to get rid of her.

Police are baffled after two young women are murdered during strikingly similar crimes along the same scenic bike trail just months apart.

Can police sift through a maze of phone records and grainy video to pick up the trail of the man who murdered a beloved preacher's wife?

Will a heartbroken mother's quest for justice lead police to solve the murder of her daughter and a close friend?

Will the mysterious details of one teenager's murder lead police to solve two brutal murders committed by the same deadly predator?

James Holland receives a call from the Pennsylvania State Police, and meets a witness who could help solve one of the cold case mysteries.

When John and Susan are shot in their Florida home, Susan is killed, and John survives, but he's blinded. Is it the work of one of John's clients?

Debra believes faith will help Randy overcome his past. After they marry, his violent side takes over. She escapes, but the next woman isn't lucky.

Rogelio Morales sweeps Margarita Sanchez Lemus off of her feet. Behind his winning smile, lurks a monster who will soon show his true colours.

Someone murders a father, sets his home ablaze, and his sons disappear. A so-called family friend steps forward, shifting the case.

The police arrest the now-divorced Barnetts, and Michael turns on Kristine.

CCTV, wiretaps and the DNA left at the scene of the Kim Kardashian diamond heist soon have the cops closing in on a surprising gang of suspects.

Two young women are poisoned by a mysterious man called Fred. The fear: that a serial killer is targeting sex workers on the streets of London.

Two young women enter into a complicated romance that ends in deadly rage.

Competitive runner Amy goes jogging in the mountains and never returns home. Where is Amy, and what does her jealous husband know about her disappearance?

Someone murders a father, sets his home ablaze, and his sons disappear. A so-called family friend steps forward, shifting the case.

In Connecticut, an employee arrives at his bank with a bomb strapped to him, claiming he will die if not given money.

James Holland receives a call from the Pennsylvania State Police, and meets a witness who could help solve one of the cold case mysteries.

CCTV, wiretaps and the DNA left at the scene of the Kim Kardashian diamond heist soon have the cops closing in on a surprising gang of suspects.

Two young women are poisoned by a mysterious man called Fred. The fear: that a serial killer is targeting sex workers on the streets of London.

Rogelio Morales sweeps Margarita Sanchez Lemus off of her feet. Behind his winning smile, lurks a monster who will soon show his true colours.

CCTV, wiretaps and the DNA left at the scene of the Kim Kardashian diamond heist soon have the cops closing in on a surprising gang of suspects.

Two young women are poisoned by a mysterious man called Fred. The fear: that a serial killer is targeting sex workers on the streets of London.

When 21-year-old Diamond Bynum and her 2-year-old nephew, King, vanish from their Gary, Indiana, home, police first think they simply wandered off.

Two young women enter into a complicated romance that ends in deadly rage.

When a football coach vanishes, police investigate a secret betting ring. A chain of clues leads them to one gambler who couldn't pay up.

Natalia returns to the Barnett's house of horrors as she confronts the neighbour who turned her back on her.

Debra believes faith will help Randy overcome his past. After they marry, his violent side takes over. She escapes, but the next woman isn't lucky.

Rogelio Morales sweeps Margarita Sanchez Lemus off of her feet. Behind his winning smile, lurks a monster who will soon show his true colours.

CCTV, wiretaps and the DNA left at the scene of the Kim Kardashian diamond heist soon have the cops closing in on a surprising gang of suspects.

Two young women are poisoned by a mysterious man called Fred. The fear: that a serial killer is targeting sex workers on the streets of London.

Young Rachanda Pickle vanishes from home, and the search for her begins.

When a football coach vanishes, police investigate a secret betting ring. A chain of clues leads them to one gambler who couldn't pay up.

Someone murders a father, sets his home ablaze, and his sons disappear. A so-called family friend steps forward, shifting the case.

The police arrest the now-divorced Barnetts, and Michael turns on Kristine.

When mortgage broker Fay Zonis is found stabbed to death in her office, the Russian-American community is left devastated. Who could be behind her brutal murder?

Detectives reach deep into the past in an attempt to discover what happened to Rachanda Pickle.

On New Year's Eve, NFL player and former high school football star Darrent Williams is at a party. Soon after midnight, he's shot dead.

In Connecticut, an employee arrives at his bank with a bomb strapped to him, claiming he will die if not given money.

In the middle of the 2017 deer season in Campbellsburg, Kentucky, the hunter becomes the hunted.

When popular news anchor Jodi is reported missing, an investigation indicates that she was attacked on her way to work. But where is she now?

Detectives reach deep into the past in an attempt to discover what happened to Rachanda Pickle.

CCTV, wiretaps and the DNA left at the scene of the Kim Kardashian diamond heist soon have the cops closing in on a surprising gang of suspects.

Two young women are poisoned by a mysterious man called Fred. The fear: that a serial killer is targeting sex workers on the streets of London.

A man flees his axe-wielding roommate. A group of teens hunt for a couple of package thieves. Police receive an assist from an unlikely animal.

A pizza delivery guy becomes an unlikely hero. Police chase down an Amish buggy. An armed elderly man reaches his breaking point.

When John and Susan are shot in their Florida home, Susan is killed, and John survives, but he's blinded. Is it the work of one of John's clients?

James Holland receives a call from the Pennsylvania State Police, and meets a witness who could help solve one of the cold case mysteries.

For decades, a predator has been hunting in the shadows. Whispers of missing women, unsolved attacks, and a faceless monster haunt a quiet town.

Someone murders a father, sets his home ablaze, and his sons disappear. A so-called family friend steps forward, shifting the case.

When 21-year-old Diamond Bynum and her 2-year-old nephew, King, vanish from their Gary, Indiana, home, police first think they simply wandered off.

In the middle of the 2017 deer season in Campbellsburg, Kentucky, the hunter becomes the hunted.

Detectives reach deep into the past in an attempt to discover what happened to Rachanda Pickle.

Natalia and Michael square off again in a no-holds-barred confrontation.

Police are puzzled when a gruesome murder shakes their small town. A cryptic message is left behind at the scene, but the identity of the killer remains a mystery.

When Heidi's alcoholic husband, Chris, goes missing, police uncover a dark secret hidden in the basement of the marital home.

When mortgage broker Fay Zonis is found stabbed to death in her office, the Russian-American community is left devastated. Who could be behind her brutal murder?

In Connecticut, an employee arrives at his bank with a bomb strapped to him, claiming he will die if not given money.

On New Year's Eve, NFL player and former high school football star Darrent Williams is at a party. Soon after midnight, he's shot dead.

Businessman Ted Ammon's wife gets revenge through her own scandalous affair, and it ends violently.

After a call on Friday the 13th, Jose Herran vanishes. When investigators dig into the town he disappeared into, they uncover something monstrous.

In Northern California, the brutal execution of a humble US Forest Service worker sends detectives on a multi-state manhunt for a deranged killer.

Debra believes faith will help Randy overcome his past. After they marry, his violent side takes over. She escapes, but the next woman isn't lucky.

Courtney thinks Mike is vulnerable, kind and sweet. When she finally has enough of his jealousy of everyone in her life, his rage explodes.

NSYNC's Joey Fatone exposes the machinery behind stardom and its cost. Interviews with artists from Boyz II Men, 98 Degrees reveal the exploitation.

When Jeff Silvernail finds his partner dead at home, it appears to be a burglary gone wrong. But police soon uncover the ultimate betrayal.

When park ranger Randy goes missing in the Sierra Nevada Mountains his colleagues work tirelessly to locate him. But will Randy be found alive?

Police are puzzled when a murder shakes their small town. A cryptic message is left behind, but the identity of the killer remains a mystery.

After a call on Friday the 13th, Jose Herran vanishes. When investigators dig into the town he disappeared into, they uncover something monstrous.

When Heidi's alcoholic husband, Chris, goes missing, police uncover a dark secret hidden in the basement of the marital home.

Businessman Ted Ammon's wife gets revenge through her own scandalous affair, and it ends violently.

Natalia and Michael square off again in a no-holds-barred confrontation.

In Northern California, the brutal execution of a humble U.S. Forest Service worker sends detectives on a multi-state manhunt for a deranged killer.

After a call on Friday the 13th, Jose Herran vanishes. When investigators dig into the town he disappeared into, they uncover something monstrous.

NSYNC's Joey Fatone exposes the machinery behind stardom and its cost. Interviews with artists from Boyz II Men, 98 Degrees reveal the exploitation.