Frank Lino was one of the shooters in the basement of Ron The Monkey Man's house. Frank Coppa was upstairs with Stefano Cannone, Cannone stopped Coppa from going downstairs and pushed Sonny Black down the steps to the basement.
I think the feds had more on Coppa, then we know about.

"I have this Nightmare. I'm on 5th avenue watching the St. Patrick's Day parade and I have a coronary and nine thousand cops march happily over my body." Chief Sidney Green