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.
In July 1992, Robert Napper stabbed Rachel Nickel in front of her 2-year-old son. In November 1993, he broke into the home of Samantha Bisset and stabbed her to death.
S4E5 43 min
