Philip Carlo, was a journalist and best selling biographer of Richard Kuklinski, he was an American contract killer and serial killer who was convicted of murdering how many people, though he likely killed at least several dozen more?
Richard Kuklinski: Richard Leonard Kuklinski (April 11, 1935 – March 5, 2006) was an American contract killer and serial killer who was convicted of murdering five people, though he likely killed at least several dozen more.
i don't know