I'm sure he's at least took part in some murders.With Carmine as boss and Sonny as his dad It seems like he may have to prove himself.
Ive heard he was respected and to be respected you have to earn it,even with who his dad is.
He did bring in a shit load of $ but I don't think that alone would've got him made maybe now but not in the 70s.
I wonder if he's ever told the fbi the truth about murders?