Judith Campbell Exner, who once had concurrent liaisons with President John F. Kennedy and Chicago Mafia boss Sam Giancana, says that she served as a courier between Kennedy and the Mafia, at Kennedy's request. In an interview published in People magazine, Exner, 54, said she lied 13 years ago in first describing her affair with Kennedy, when she said the assassinated President was unaware of her friendships with mobsters. "He knew everything about my dealings with Sam Giancana and Johnny Roselli because I was seeing them for him," Exner told interviewer Kitty Kelley. "I wouldn't have been seeing them otherwise. And I would never have known mobsters if it hadn't been for Frank Sinatra." Exner, who was paid $50,000 for the interview, said she was speaking up now because she has terminal cancer.