![](https://image.tmdb.org/t/p/w92/4d36q3fUSJE1TmeciZ0qnjj93eB.jpg)
Richard Kuklinski was a devoted husband, a loving father...and a ruthless killer. A decade after HBO last visited him in prison, the convicted murderer, who freely admits having whacked more than 100 people in cold blood, takes viewers back inside …
Richard Kuklinski,
Mark Musto,
Rocco Fazzolari,
Rich Lounello
Added on HBO 2022-06-06.