Claim: Pablo Fenjves ghostwrote for David Foster.

Pablo F. Fenjves -LRB- born 16 August 1953 -RRB- is an American screenwriter and ghostwriter based in Los Angeles , California . His screenwriting credits include the 1995 film The Affair , Man on a Ledge , released in January , 2012 , and a string of television movies .   Born in Caracas , Venezuela to Hungarian survivors of the Holocaust , Fenjves went to college in Illinois . His first journalism job was in Canada . He joined the National Enquirer in Florida in the late 1970s , where he befriended Judith Regan .   Fenjves has ghostwritten more than a dozen books , including two number one New York Times Best-Sellers -LRB- Witness and Blood Brother -RRB- . 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 . That book was pulled by the publisher just weeks before its release date , but it was subsequently revived by Fred Goldman , father of murder victim Ron Goldman , and spent five weeks on The New York Times Best Seller list . Fenjves had a personal connection to the Simpson case : Fenjves lived a few doors down from the Brentwood murder scene , and had testified against Simpson regarding the time at which he heard Nicole Simpson 's dog barking .   His current film projects include an original action script , Undertow , which is being produced by Michael De Luca ; and an original comedy , Mother , to which Halle Berry is attached .