Question: How many people was this American contract killer and serial killer, who was the subject of the movie The Iceman, convicted of killing?
Sentence (from "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.
Relevant evidence: Yes