I think the Salerno hit severed the Brooklyn faction from the rest of the Luchesse and ultimately the Genovese. And even after the highly unpopular Salerno hit, why would Chin want to keep Casso alive after also usng him for the Decicco bombing? Chin had his own guys, and the NY families rarely use bombs as a means of aggression. That was always a midwest thing. Between Mike Salerno and DeCicco he was running out of friends.

Anyway, Salerno ran white plains road all the way from parkchester up to yonkers and mount vernon. His former crew is the modern upper echelon of the Lucheses. Hooks, DiFiore, Migliore, Crea - all came up under Salerno. And the Prince Street crew hated Casso as well.

Even though Casso had a huge cache of henchmen in Canarsie and southern Brooklyn, he had cornered himself - literally- into a small corner of the borough. He had three crews - canarsie, 19th hole and mcdonald avenue versus everyone else. And he even killed Bruno Facciola, who would likely have been a great ally.

His actions speak of increasing paranoia.