Carole Radziwill shut down one of the biggest myths about her close friend John F. Kennedy Jr. in the new CNN docuseries American Prince. The Real Housewives of New York City alum - who was married to John's first cousin Anthony Radziwill - tackled numerous tabloid allegations about John and his late wife, Carolyn Bessette, in the three-episode series, including denying that anyone in the family ever called the Kennedy heir by the nickname "John John." "This whole John John thing, I don't know where it came from," Carole, 61, insisted. "I think it was a press thing.