Conversations with a Killer: The John Wayne Gacy Tapes

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

The story of the most high profile and unbelievable murder investigation in recent Italian history, resulting from the tragic and brutal slaying of 13-year old Yara Gambiarasio near her home in northern Italy in 2010.

Exploring the crimes of infamous serial killer Lonnie Franklin Jr. who preyed on women in South Central Los Angeles over a span of 25 years; exploring the personal stories of the victims who were all but forgotten.

This documentary takes a look at some of the most horrible and despicable murders in modern British history. From Jack the Ripper in the 1880s to Agatha Christie's best known stories.

TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.

Explore important and disturbing questions concerning how innocent people become ensnared by evil, and how a tight-knit community survives when senseless crime pushes it past the breaking point.

Examines the dawn of the comic book genre and its powerful legacy, as well as the evolution of the characters who leapt from the pages over the last 75 years and their ongoing worldwide cultural impact. It chronicles how these disposable diversions were subject to intense government scrutiny for their influence on American children and how they were created in large part by the children of immigrants whose fierce loyalty to a new homeland laid the foundation for a multi-billion-dollar industry that is an influential part of our national identity.

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

In official collaboration with the 9/11 Memorial & Museum, this documentary series takes viewers through harrowing moments of the historic morning of September 11, 2001.

Returning to their hometowns, Texas filmmakers Richard Linklater, Alex Stapleton, and Iliana Sosa chronicle the complex history of each city, while examining the toll that the prison system, oil business, and border laws have on those communities.

Andrew Marr explores how Darwin's theory of evolution by natural selection has taken on a life of its own far beyond the world of science.