(Rebel Circus)During the 1960s and 1970s, there was not a person alive who didn’t know about serial killer Charles Manson. Manson, of course, became internationally famous as the leader of the Manson Family – a hippie commune cult that eventually went on a killing spree that ended the life of actress Sharon Tate. His face was one that became inextricably linked with American serial killers, and to a lesser point, cult leadership. For the past several decades, he has been spending life in prison. Now, authorities are saying that he’s on his last breath.