Office of Strategic Services officer during World War II, a U.S. Senate staff member and investigative reporter, an investigator for the Senate Committee on Civil Liberties, and a U.S. State Department intelligence analyst who devoted 40 years of his life to researching and writing about the assassinations of John F. Kennedy and Martin Luther King. He wrote ten self-published and published books and approximately thirty-five unpublished books related to the details for those assassinations, mostly with respect to Kennedy's assassination.