Pablo Fenjves ghostwrote for a human.
Orenthal James `` O. J. '' Simpson ( born July 9 , 1947 ) , nicknamed The Juice , is a former American football running back , broadcaster , actor , and convicted armed robber and kidnapper . Pablo Fenjves . Fenjves also ghostwrote the autobiographies and memoirs of Bernie Mac , Janice Dickinson , and music producer David Foster . He collaborated with O.J. Simpson to ghostwrite If I Did It , an account of the Simpson murder case .