Roy DeMeo, Vito Genovese.
Agree about Genovese but it's hard to see Roy as just a "douchebag" Having read both Murder Machine and Albert DeMeo's book, I'm inclined to believe most of Albert's stuff compared to most of Dom Montiglio's. He's a lot more believable. I know it's his dad, I'm not saying he's not biased, but Montiglio was hardly a player and you can tell he wants to blame as much stuff on Roy as possible, always trying to darken his already pitch-black character. I do believe Roy did at least half of the stuff claimed on Murder Machine, but I also am inclined to believe Albert on some other stuff, his human side, etc.. and apparently Roy was very generous.