Carolyn Bessette

Martha Stewart says she warned John F. Kennedy Jr. that he should have a copilot before he died in a fatal 1999 plane crash with his wife, Carolyn Bessette, and her sister, Lauren. Martha made the stunning revelation on Tuesday's episode of "The Real Housewives of New York City," telling her…

Donald Trump says he had a front-row seat to John F. Kennedy Jr. and Carolyn Bessette's volatile relationship ... remembering how they fought, made up, then made out at Mar-a-Lago. The President of the United States called into the hit Fox News show "The Five" ... and Dana Perino -- the former…