For the third time, HBO cameras go inside Trenton State Maximum Security Prison–and inside the mind of one of the most prolific killers in U.S. history–in this gripping documentary. Mafia…

Richard Kuklinski was a devoted husband, loving father–and ruthless killer of over 100 people. You’ll meet him in this powerful documentary that features one of the most vivid and disturbing…

The second HBO documentary on former mafia enforcer Richard Kuklinski will chill you to the bone. Speaking in the monotonous drone of a man who has numbed himself with remorseless…