JFK, LBJ, TRLThe CIA official who organized the Watergate break-in claims that Lyndon B. Johnson might have been behind the Kennedy assassination. MTV’s TRL may be on the way out. Mark Wahlberg doesn’t like being famous. Gwen Stefani is a character in an upcoming novel. Madonna and ex-husband Carlos Leon are still friends. Paris Hilton pal Kim Kardashian may be making some money off her sex tape. Alec Baldwin’s directorial debut is, after much financial wheeling and dealing, finally getting released. Howard Stern lackey Artie Lange might be leaving the program for Fox. Andy Warhol’s former house in Montauk sold for half its asking price. Penélope Cruz and Pedro Almodóvar hung out at Cipriani Downtown.