

A playing card left at a murder scene connects a string of killings in this docuseries tracking a notorious serial killer who terrorized Spain in 2003

A shocking murder in rural Ireland sets off an increasingly convoluted quest for justice that spans decades and cuts across national borders.

The investigators behind infamous serial killer cases reveal the harrowing, chilling details of their extraordinary efforts in this true crime series.

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

Recently discovered police recordings and first-person accounts tell the story of Fred and Rose West, two of the UK's most prolific murderers.

The docuseries follows people deeply involved in the group NXIVM — which is faced with various charges, including sex trafficking and racketeering conspiracy — over the course of several years.

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.

Police missteps and a media circus derailed the JonBenét Ramsey murder case. This definitive docuseries chronicles the decades-long quest for justice.

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

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

Follow documentarians Joshua Zeman and Rachel Mills as they investigate one of the most bizarre unsolved serial killer cases of our time – the deaths of ten sex workers discovered on Gilgo Beach, Long Island.

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.

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?

Detectives and prosecutors revisit their most challenging homicide cases in this chilling true-crime docuseries.

A tenacious mother unravels the complex mystery surrounding the 1989 disappearance of the daughter she placed for adoption.

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.

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.

The white Bronco. The gloves. The trial of the century. This documentary series investigates the shocking murder case that became a cultural phenomenon.

New interviews and an up-to-date analysis of evidence shed light on the 1992 murders of three girls in Spain and their profound impact on the nation.

From Executive Producer Dick Wolf, this true crime investigative series follows veteran prosecutor Kelly Siegler, and her rotating team of seasoned detectives, as they travel to small towns across the country and help local law-enforcement agencies dig into unsolved homicide cases that have lingered for years without answers or justice for the victims due to lack of funding and proper forensic technology.

This docuseries examines the decades-old murder of Sister Catherine Cesnik and its suspected link to a priest accused of abuse.