For years, Richard Kuklinski satisfied his homicidal urges by taking on contract killings for organized crime families in New York and New Jersey. Following his arrest and conviction, he agreed to sit down and elaborate on his unusual methodologies for disposing of victims and how he balanced his violent tendencies with a seemingly normal domestic life that included marriage and children. (You can see an example of Kuklinski’s chilling disposition in the clip above.) In addition to The Iceman Tapes, which originally aired on HBO, Kuklinski participated in two follow-ups: The Iceman Confesses: Secrets of a Mafia Hitman in 2001 and The Iceman and the Psychiatrist in 2003. See them on HBO or watch the original and both follow-ups for free on Amazon Prime.