An in-depth look at the lives and crimes of some of the world's most evil killers, including Jeffrey Dahmer, Richard Ramirez, Cary Stayner, Leonard Lake, Dorothea Puente and more.
John Wayne Gacy murdered 33 boys and young men during a six-year period in the 1970s. He hid the bodies of his victims in the walls of his suburban home.
S1E13 43 min
