• What caused the death of troubled socialite and heiress Casey Johnson, who was discovered dead in her LA home yesterday? It's too soon to say since toxicology results are pending, although at least one tabloid is suggesting prescription pills may have been involved. In a bizarre twist to the story, Johnson's "fiancée," reality TV star/fame addict Tila Tequila, tweeted last night that Johnson hadn't actually died and was really in a coma, before backtracking a little while later and acknowledging what had already been confirmed by the police. Tequila's also believed to be the last person to have seen the Johnson & Johnson heiress alive. [TMZ, NYP, NYDN]
• It looks like when Beyoncé performed in St. Barts on New Year's Eve, she was doing so at the behest of Hannibal Khadafy, the son of Libyan dictator Moammar Khadafy. This would be the same man who is rumored to have broken his wife's nose last month, was arrested in 2005 for punching her, and was detained by the police in Geneva in 2008 for beating his servants. So either Beyoncé is really hard up for cash (which is doubtful), or she needs someone to vet her public appearances going forward. [P6]
• The third White House state dinner crasher has been identified. His name is Carlos Allen and he's a DC-based party promoter, and he managed to sneak into the White House by hopping on a bus filled with Indian diplomats. [WP]
• Susan Sarandon has denied reports that she's involved with Jonathan Bricklin, her partner in SPiN, the ping pong club on the East Side. But a source close to the 31-year-old entrepreneur says Bricklin and Sarandon spent New Year's together and were very "touch-feely." [Fox411]