You know what's real wild? He's actually buried at the Mount of Olives. Though I don't think he got whacked though he made many enemies defaulting on many debts and indeed he is the inspiration for the villain (as well as the coverstory of the villain's death) in 007 Tomorrow Never Dies and that is pretty admittedly based. I think actually there is some validity to the conventional story of his death, even his own sons agree with it, but essentially he was a decadent and hedonistic fraudster, and he had a well known bad habit of liking to pee nude off the side of his yacht, and perhaps he merely slipped in his own filth poetically, maybe he had a heart attack, and just basically drowned. But if it turns out Pierce Brosnan pushed him over the edge, so be it.