Most Evil - Season 1 - Eps 2: Cold-Blooded Killers
The most notorious killers -- Bundy, Gacy, Ridgway, Sells -- have claimed hundreds of victims and share one thing in common. They are all psychopaths. It is estimated that one in every 100 people is a psychopath. But what pushed these psychopaths into serial murder? Was it nature or nurture? To understand their savage brutality, we will travel back into their childhoods, reveal startling new scientific research about psychopaths and meet one of these killers face to face.
About Most Evil

Title: Most Evil
First Air Date: 2006-07-13
Last Air Date: 2015-02-26
Status: Ended
Rating: 7.9/10 (from 7 votes)
Language: EN
Seasons: 3
Total Episodes: 38
Network: Investigation Discovery
Genres: Documentary, Crime
Production Companies: Unknown
Synopsis
Most Evil is an American forensics television program on Investigation Discovery presented by forensic psychiatrist Michael Stone of Columbia University. On the show, Stone rates murderers on a scale of evil that Stone himself has developed. The show features profiles on various murderers, serial killers, mass murderers and psychopaths.