A Heritage of Nonsense: Jim Garrison's Tales of Mystery & Imagination is Fred Litwin's fourth book on the JFK assassination. Previous books include Oliver Stone's Film Flam: The Demagogue of Dealey Plaza, which debunked the documentary series JFK Revisited; On the Trail of Delusion - Jim Garrison: The Great Accuser, which chronicled Garrison's persecution of Clay Shaw; I Was a Teenage JFK Conspiracy Freak, detailing Fred's journey from believing in a JFK conspiracy at eighteen to slowly moving to believe that Lee Harvey Oswald was the lone gunman.