Leroy Fletcher Prouty (January 24, 1917 – June 5, 2001) served as Chief of Special Operations for the Joint Chiefs of Staff under President John F. Kennedy. A colonel in the United States Air Force, he retired from military service to become a bank executive. He subsequently became a critic of U.S. foreign policy, particularly the covert activities of the Central Intelligence Agency (CIA), which he believed was working on behalf of a secret world elite. Prouty's commentary on the Kennedy assassination circulated widely from the 1970s-90s, as a key source for conspiracy theories about it. He was the inspiration for the character "Mr. X" in Oliver Stone's film JFK. Source: Wikipedia (en)