Celebrity biography readers beware. David Cay Johnston catalogs how one best-selling author, C. David Heymann, who wrote books of historical significance about world leaders and A-class celebs, filled his pages with inaccuracies and downright scurrilous fabrications. C. David Heymann"™s Lies About JFK and Jackie, Marilyn Monroe and Elizabeth Taylor by David Cay Johnston Newsweek August