Inside the World's Toughest Prisons

This intense documentary series details true stories of neighbors gone bad, from heinous fraud schemes to senseless acts of violent retribution.

In this true-crime documentary, a cult expert and filmmaker infiltrate a polygamist sect to expose a self-proclaimed prophet and bring him to justice.

From crippling payday loans to cars that cheat emissions tests, this investigative series exposes brazen acts of corporate greed and corruption.

Through bodycam footage, texts and interviews with loved ones, this documentary investigates the horrifying murder of four University of Idaho students.

Serial killer Jeffrey Dahmer confesses to his gruesome crimes in unguarded interviews, offering an unsettling view into a disturbed mind.

Death row inmates convicted of capital murder give a firsthand account of their crimes in this documentary series.

What happened to Mica Miller? This documentary series retraces her promising life, toxic marriage and the mysterious circumstances of her death.

Archive footage, chilling reenactments and exclusive interviews shed new light on a tragedy — and two brothers — that suspended a city in terror.

An overgrown field and a stretch of highway connect a series of grisly murders spanning several decades as grieving families search for answers.

Who killed Nora Dalmasso? In this true-crime series, family and journalists share the untold story of her murder and the media storm that followed.

This true crime series shows how innocent people have been convicted with dubious forensic techniques and tools such as touch DNA and cadaver dogs

Insider accounts and never-seen-before footage tell the story of the 7/7 bombings on London's transport network in 2005 — and its explosive aftermath.

A six-part, true crime docuseries about a mysterious murder of Ken Rex McElro that took place in the ‘80s with at least 60 witnesses present, all of whom deny seeing anything.

Interviews with friends, family and Sally McNeil herself chart a bodybuilding couple’s rocky marriage — and its shocking end in a Valentine's Day murder.

Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now focuses mainly on true crime stories with only occasional editions that focus on other topics.

The true stories of people who lived with a killer. How well do you really know your family? Would you recognize the warning signs? Or would you become entangled in evil?

Via interviews with friends, players and insiders, this docuseries examines how Aaron Hernandez went from an NFL star to a convicted killer.

From chilling betrayals to murder plots, this true-crime docuseries dissects the dark side of love through eyewitness testimonies.

A non-fiction investigative series of murder cases told through the personal experience of retired detective, Lieutenant Joe Kenda. Through re-enactments, discussions with investigation teams, and interviews with victims' families and other involved persons, the show highlights Kenda's successes with his 400 homicide case history and 92 percent solution rate.

In 1991, four teenage girls were brutally murdered at a frozen yogurt shop in Austin, Texas. What happened that night forever shook the Austin community and continues to mystify the police and haunt the families left in the wake of unthinkable loss.