As Lucky Luciano put it after he had engineered the assassination of the old Don Giuseppe Masseria in an NYC Italian restaurant (where else? - Masseria's head fell down onto a plate of Spaghetti Bolognese): "I was out in the men's room taking a leak; I always take a long leak".

That line gave him a good alibi, and it was actually true, though he had hired the killers, but of course it was censored by the police.