Nicola Bulley: The Disappearance That Gripped Britain

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.

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

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

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

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

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

Chronicles the bizarre and psychologically complex story of six individuals who were convicted for the 1985 murder of a beloved 68- year-old grandmother, Helen Wilson, in Beatrice, Nebraska.

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

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.

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

Revisit the shocking 1999 murder of beloved TV presenter Jill Dando, which continues to mystify experts and the public, in this in-depth documentary.

This docuseries explores the period between 1979 and 1981 when at least 30 African-American children and young adults disappeared or were murdered in Atlanta, Georgia.