Jewish Organized crime was pretty inter-related with the Italian stuff. Arnold Rothstein is considered by many to be the father of organized crime in America. You know that Bugsy Segall was Jewish and not Italian?
Ah, you should have stopped when I begged you to.
It's GOTTI. And Bruce Cutler was HIS attorney.
And Gotti was the "Boss of Bosses" and lived in New York City.
Anybody who has a "good knowledge" of the mob would know those facts even if they didn't know a thing about the mob/mafia.