Hotel heiress Paris Hilton has admitted something the rest of the world already knew - she's not that bright. The 25-year-old star of The Simple Life made her confession to cops quizzing her about a burglary at the home of Girls Gone Wild creator Joe Francis. She was hailed as a crime-fighter when she told Francis, who has made a fortune selling raunchy videos of topless college girls partying, she had overheard on the party scene that a Hollywood hanger-on called Darnell Riley had boasted of breaking into his house. But when she was quizzed by Los Angeles police it...