Investigation Discovery

Body parts start turning up after a small town celebrity goes missing.

After a grandmother suddenly dies of a suspicious illness, the autopsy reveals that she was poisoned; the case takes a turn when a series of anonymous letters refer to the victim's son.

After the kidnap and murder of a successful businessman, the detectives uncover piles of debt in his name and multiple suspects on the radar.

Natalia and Michael square off again in a no-holds-barred confrontation; Natalia is looking for more than answers from Michael, and she wants evidence and admissions to the abuses she suffered at the hands of Michael and Kristine.

The confrontation between Natalia and Michael comes to an unexpected and emotional end; as shocking details of her past in Ukraine come to light, Natalia finds her forever family.

Chris Anderson and Fatima Silva hear the case of Joel Atkin, a man who made a wrong turn in 2009, sparking a petty argument that left one man dead and Atkin in prison for murder.

Andrea Yates appears to have the perfect family, but her fascination with extreme religious ideas and her postpartum psychosis lead her to believe Satan is sending her messages telling her to drown her children.

In the '60s and '70s, a serial killer stalks young women in New Jersey; at the same time, three women in New York City are sadistically murdered; no one expects that one man is causing the mayhem, let alone a seemingly ordinary father of three.

In the '60s and '70s, a serial killer stalks young women in New Jersey; at the same time, three women in New York City are sadistically murdered; no one expects that one man is causing the mayhem, let alone a seemingly ordinary father of three.

Ruby's words expose abuse at the hands of Jodi Hildebrandt, but is it over?

A woman suspects her mother of a double murder; years later, courtroom drama and new testimony reignite the case; featuring extensive testimony from defendant Dana Chandler, along with new and archival interviews.

In 1997, a grandmother is found murdered in her Florida apartment; family members spend the next 15 years suspecting one of their own kin is responsible.

A woman suspects her mother of a double murder; years later, courtroom drama and new testimony reignite the case; featuring extensive testimony from defendant Dana Chandler, along with new and archival interviews.

A woman suspects her mother of a double murder; years later, courtroom drama and new testimony reignite the case; featuring extensive testimony from defendant Dana Chandler, along with new and archival interviews.

A woman suspects her mother of a double murder; years later, courtroom drama and new testimony reignite the case; featuring extensive testimony from defendant Dana Chandler, along with new and archival interviews.

In 1997, a grandmother is found murdered in her Florida apartment; family members spend the next 15 years suspecting one of their own kin is responsible.

In the '60s and '70s, a serial killer stalks young women in New Jersey; at the same time, three women in New York City are sadistically murdered; no one expects that one man is causing the mayhem, let alone a seemingly ordinary father of three.

Natalia and Michael square off again in a no-holds-barred confrontation; Natalia is looking for more than answers from Michael, and she wants evidence and admissions to the abuses she suffered at the hands of Michael and Kristine.

When a cab driver turns up dead in the boot of his car, Oklahoma detectives are soon convinced they have solved the case.

The key to solving homicides lies somewhere within the final 24 hours of the victim's life.

A man hired a killer for his wife, but the wrong women ends up dead.

When a cab driver turns up dead in the boot of his car, Oklahoma detectives are soon convinced they have solved the case.

The key to solving homicides lies somewhere within the final 24 hours of the victim's life.

A man hired a killer for his wife, but the wrong women ends up dead.

When a cab driver turns up dead in the boot of his car, Oklahoma detectives are soon convinced they have solved the case.

The key to solving homicides lies somewhere within the final 24 hours of the victim's life.

When family man Ricky Saxton is found murdered, investigators turn to a forensic data specialist at the FBI to help locate a missing piece of the puzzle; a deleted snapshot buried deep within the data leads them to Ricky's killer.

When a model scout approaches two high school boys for photos with the lure of cash and a glossy portfolio, they find it hard to resist her advances.

When high school boys are harassed online by a new girl in a California town, secrets unfold that tear the community apart; one mother has heard it all before and won't stop until justice is finally served.

A homicide suspect holding his own cousin hostage leads police on a chase through the city; a rookie cop chases a car acting strangely deep into a Florida swamp.

A parking lot showdown terrifies onlookers; a fender-bender leads a motorist on a chase; an aggressive driver uses an unusual weapon on her victim; tensions run high for two squabbling motorists.

A chilling home invasion, a pizzeria robbery, an early morning police pursuit, and a normal drive to work interrupted by a violent rampage all share the commonality of a completely naked suspect.

After James Brown dies on Christmas 2006, some suspect murder; the conspiracy grows with the shooting death of his son-in-law Darren Lumar in November 2008; when detectives dig into Lumar's past, the possibility for motives becomes endless.

A CEO at just 29, Jenea Harvison supports her husband as his dreams of becoming a football player falter. However, living in his wife's shadow soon proves too much for Roy Harvison, and the price will be more than one life.

After Andrea Yates' horrifying act, her dark preoccupation emerges - a secretive cult, twisted teachings, and followers drawn into a growing web of control.

Woroniecki seemingly traps his followers in an isolation cocoon. His teachings appear to twist salvation into submission - until Andrea Yates commits a horrific act that stuns a nation.

Andrea Yates faces two trials in the aftermath of the drownings, exposing the preacher's lingering influence. As Woroniecki deflects blame onto Rusty, a juror quietly reveals that his teachings shaped the verdict, raising questions of accountability.

Writings and social media posts help to reveal the secret life and troubles of Luigi Mangione, the man accused of the brazen murder of United Healthcare CEO Brian Thompson and whom so many people are calling a hero.

After Andrea Yates' horrifying act, her dark preoccupation emerges - a secretive cult, twisted teachings, and followers drawn into a growing web of control.

Woroniecki seemingly traps his followers in an isolation cocoon. His teachings appear to twist salvation into submission - until Andrea Yates commits a horrific act that stuns a nation.

Andrea Yates faces two trials in the aftermath of the drownings, exposing the preacher's lingering influence. As Woroniecki deflects blame onto Rusty, a juror quietly reveals that his teachings shaped the verdict, raising questions of accountability.

When a model scout approaches two high school boys for photos with the lure of cash and a glossy portfolio, they find it hard to resist her advances.

A homicide suspect holding his own cousin hostage leads police on a chase through the city; a rookie cop chases a car acting strangely deep into a Florida swamp.

When family man Ricky Saxton is found murdered, investigators turn to a forensic data specialist at the FBI to help locate a missing piece of the puzzle; a deleted snapshot buried deep within the data leads them to Ricky's killer.

The key to solving homicides lies somewhere within the final 24 hours of the victim's life.

The badly battered body of 15-year-old Annie Kasprzak is found in a river outside Salt Lake City; as Utah detectives unravel a complex web of lies, a local drug dealer and the victim's mysterious boyfriend come under suspicion.

A young German drifter moves to America, and uses various identities as he kills.

The key to solving homicides lies somewhere within the final 24 hours of the victim's life.

The badly battered body of 15-year-old Annie Kasprzak is found in a river outside Salt Lake City; as Utah detectives unravel a complex web of lies, a local drug dealer and the victim's mysterious boyfriend come under suspicion.

A young German drifter moves to America, and uses various identities as he kills.

The key to solving homicides lies somewhere within the final 24 hours of the victim's life.

The badly battered body of 15-year-old Annie Kasprzak is found in a river outside Salt Lake City; as Utah detectives unravel a complex web of lies, a local drug dealer and the victim's mysterious boyfriend come under suspicion.

Police uncover a trail of evidence that indicates that a missing young woman has been the victim of foul play.

An ex-felon with an axe to grind takes his former lawyer hostage, threatening to detonate a bomb if he doesn't get justice.

State troopers arrive at the scene of a woman shot to death in her bed; they rule it suicide, but a tenacious detective reopens the case decades later; modern forensics, a double life and new witnesses turn the facts of the case on their heads.

Nassau County, Long Island, flips upside down when an unknown shooter murders a cop and an innocent motorist on the Cross Island Parkway.

Akron officers respond to a shooting outside a convenience store; they find Dereke Alexander bleeding with a faint pulse, but he doesn't survive; the investigation leads detectives to two cold-blooded killers who stalked and hunted the man.

Lansing police officers find Donovan Barfield's body riddled with bullets and his apartment ransacked; as investigators race to identify the perpetrator, they uncover a diabolical plan of murder and robbery orchestrated by a trio of reckless killers.

When two friends go missing in Bakersfield, California, and another is murdered in the space of one month, their families fear something sinister is brewing; they join forces to find out what happened and where their children are now.

Terrifying discoveries in local waterways solidify the moms' fears that the cases are connected; their kids were all on dark paths that brought them face to face with dangerous local characters, including the self-proclaimed Boogieman of Bakersfield.

Body cameras capture the life-or-death decisions made by police officers, from domestic disputes to traffic stops gone dangerously awry.

Police search for answers on who shot three men after a car crash.

Police hunt for Micah's killer, and evidence points to someone he knew; a dramatic arrest furthers the investigation, but answers won't come easily; the moms continue their quest for justice; a shocking press conference threatens to tear them apart.

Body cameras capture the life-or-death decisions made by police officers, from domestic disputes to traffic stops gone dangerously awry.

Police search for answers on who shot three men after a car crash.

Body cameras capture the life-or-death decisions made by police officers, from domestic disputes to traffic stops gone dangerously awry.

An ex-felon with an axe to grind takes his former lawyer hostage, threatening to detonate a bomb if he doesn't get justice.

State troopers arrive at the scene of a woman shot to death in her bed; they rule it suicide, but a tenacious detective reopens the case decades later; modern forensics, a double life and new witnesses turn the facts of the case on their heads.

Akron officers respond to a shooting outside a convenience store; they find Dereke Alexander bleeding with a faint pulse, but he doesn't survive; the investigation leads detectives to two cold-blooded killers who stalked and hunted the man.

Investigators look into the case of Missy Atkins, who was ambushed and shot in her bedroom.

Investigators have to keep their cards close to their chests as they hunt the killer of a single mother in Georgia, and the suspect list keeps growing.

A young teen disappears from a small American town, only to he turn up in Europe.

Investigators look into the case of Missy Atkins, who was ambushed and shot in her bedroom.

Investigators have to keep their cards close to their chests as they hunt the killer of a single mother in Georgia, and the suspect list keeps growing.

A young teen disappears from a small American town, only to he turn up in Europe.

Investigators look into the case of Missy Atkins, who was ambushed and shot in her bedroom.

Investigators have to keep their cards close to their chests as they hunt the killer of a single mother in Georgia, and the suspect list keeps growing.

For over a decade, a twisted web of secrets and lies conceals the identity of the person who heartlessly murdered a selfless mother of three; when the truth finally comes out, the revelation stuns the family, the community and the investigators.

Arson investigators find a man dead in a burned-out home; the police investigation quickly uncovers victim number two; it's up to Detective Meroni to catch the killer before he strikes again.

Rowdy supporters of a man accused of shooting his own child face contempt of court; a 72-year-old lawyer is tackled at security; an inmate tries to escape her fate through the ceiling; a plaintiff suffering a stroke has an unlikely savior.

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.

CSI Alina Burroughs travels to Colorado to investigate the murder of Peggy Hettrick, whose nude and mutilated body turns up in a vacant lot; with the help of a cutting-edge DNA technique, Alina works to let Peggy tell her story from beyond the grave.

In Vermont, a dad wielding an excavator attacks officers to stop them from arresting his son; in Wisconsin, a police pastor on a ride-along gets caught up in a high-speed chase; in an Indiana motel, a wanted man opens fire on police.

Routine traffic stops suddenly take a turn for the worse, and a passenger opens fire on a rookie deputy; after sniffing a mysterious substance in a suspect's car, an officer fights for his life.

When detectives identify a brutalized body in the desert, they never expect she is one of many; linking her murder to two others 500 miles away, agencies must now work together to identify and stop a sinister serial killer before it is too late.

Renee wonders why her brother, Ricky, targets her; thankfully, her oldest brother, Ronnie, protects her and keeps Ricky in check; after years of his cruelty, they've had enough of him and fight back; that's when Ricky plots his revenge.

After a farmer is found dead on his kitchen floor, everyone on the property becomes a suspect in a complicated investigation that leads to a shocking discovery.

The midnight murder of a snow plowman puts his friends on edge as their tiny town struggles to root out the culprit; police find a clue on the victim's forehead that may be the killer's calling card.

Renee wonders why her brother, Ricky, targets her; thankfully, her oldest brother, Ronnie, protects her and keeps Ricky in check; after years of his cruelty, they've had enough of him and fight back; that's when Ricky plots his revenge.

After a farmer is found dead on his kitchen floor, everyone on the property becomes a suspect in a complicated investigation that leads to a shocking discovery.