Why was it these guys were particularly violent and brutal compared to the other farm teams that grew in to factions of OC? If you don't know, Sam Giancana used to be in a gang of small time hoods starting from grade school. They included all the future Outfit leadership. Marshall Caiano, Sam Battaglia and others were all members of the gang which spent their youth terrorizing small communities. From a psychology standpoint these guys were way different than the farm teams the Colombos and Genovese kept around. For one, the sheer brutality is incredible. Petty shootings of innocents, eventual involvement in torture, and seamless integration in to the Outfit. What do we know about them?

Was Sam the leader or was there another? He had to have been about 9 when they started.