Tom Kimball

American serial killers are hardly a phenomenon confined to the 20th and 21st centuries. The Old West was a well-known time of lawlessness. A time when serial killers stalked the mountains, prairies and deserts of North America. A time when men like, Billy the Kid, Jesse James, John Wesley Hardin, and the Kentucky cannibal left a trail of victims strewn across the landscape. The ruthlessness of their murders will shock in this feature-length documentary goes back into history to uncover the origins of evil during the Old West.

This true crime docuseries strips the covers from a world of profiling, forensic science and painful investigation to expose history's most brutal serial killers.

This 7-part season is filled with expert interviews and in-depth portraits of some of America's most infamous killers including John Wayne Gacy, David Berkowitz, Richard Ramirez, James DeAngelo, Aileen Wuornos, Jeffrey Dahmer, Andrew Cunanan, Ted Bundy and many others.