Watch Manson: 40 Years Later (2009) Online

He was the mastermind of the most notorious murders in U.S. history, a crazed guru who terrified the world and plunged the city of Los Angeles into a state of paranoia and panic. This two-hour docudrama from HISTORY takes viewers deep inside Charles Manson s twisted world of hate, fear, and mind control to tell the story of how one man transformed a harmless group of hippies into a gang of brutal murderers.