During a two year rampage, a sadistic serial killer broke into the homes of families throughout California. He raped, mutilated and tortured more than 25 victims in one of the most vicious sprees in US criminal history. When Richard Ramirez was arrested on 25th August 1985 a bizarre story involving Satanism and cult worship began to emerge, and the killer seem to exercise an extraordinary hold over many people who attended his trial.