Richard Kuklinski

Richard Leonard Kuklinski (April 11, 1935 – March 5, 2006), also known as The Iceman, was an American criminal who was convicted of murdering five people and given life imprisonment. 
While in prison, Kuklinski gave interviews where he claimed to have worked for the Mafia and killed hundreds of people. There is no evidence to support this. He was born in Jersey City, New Jersey.
Kuklinski died at age 70 on March 5, 2006 in Trenton, New Jersey of complications from blood disease. His body was cremated.