Who conducted the investigation into the responsibility of Lee Harvey Oswald for the assassination of JFK
His books include " The Killing of a President : The Complete Photographic Record of the JFK Assassination , the Conspiracy , and the Cover - up " ; " The Search for Lee Harvey Oswald : A Comprehensive Photographic Record " ; and " JFK : The Case for Conspiracy " ( shorter version than his 1975 co-authored book ) .