The sinking of tech billionaire Mike Lynch’s yacht in a freak storm off the Sicilian coast last week certainly has to rank among the most bizarre fatal celebrity accidents in years. There was the weird coincidence that Lynch had just gotten acquitted after a yearslong legal battle over a multibillion-dollar fraud; the eerie synchrony of the same-day death of his co-defendant after being struck by car while jogging; the fact that the $40 million vessel...