What was one major reason for 9/11? A government system that is so reckless that it does not shy away from killing innocent civilians in masses, and even its own leader, to realize their imperialistic goals. Documents published in this book prove: President John F. Kennedy was assassinated by four Mafiosi, hired by the CIA. It was a well-laid plot by the CIA, the FBI, the National Security Agency, and the Joint Chiefs of Staff of the U.S. Armed Forces. J.F. Kennedy was suspected of passing secret CIA briefing papers to the Soviet Union in order to defuse the Cuba missile crises and to thwart imperialistic war plans of his administration against Cuba. This administration felt that this was sufficient reason to 'remove' the President by assassination. The explosive documents of this book come from the files of Robert T. Crowley, former Assistant Deputy Director of the CIA's Department for Clandestine Operations. Regicide is the very first study to use official documents.