Very interesting question , There's allot of different ways a gig can be brutal , For Example Amuso and Casso ordered hits on women and murdered there's own members in droves,As did Scarfo, Then you have guys who ran families prosperously for decades like Gambino or Profaci who over the course of thier reigns may have killed scores of people all in the name of keeping order, Then you just gave your all out Savages like The Mad Hatter,DeMeo,Sam DeStefano,etc who killed people in droves and is not limited to Italian American criminals, Roy DeMeo was alleged to have killed 200 people? Well in the 80's a Colombian women in Miami killed over 250