The Members Only jacket guy did it obviously, but who hired him is the question.
David Chase likes to reference scenes from The Godfather so the members only guy shooting Tony from the direction of the bathroom is like Michael Corleone shooting Sollozo after going to the bathroom to get the pre planted gun.
Tony made many enemies, so it could be anyone but the most likely theory is Patsy, especially since his son was starting to get involved with Tony and he wanted to keep his son from getting corrupted.
Could also be the family of Eugene Pontecuervo getting payback since Eugene wore a Members Only jacket, so the hit man wearing the same jacket could be a connection. Eugene was the guy who hung himself after Tony wouldn’t let him retire after inheriting $2million from his aunt, he was also working with the FBI.
Regardless, the Sopranos were a pigmy thing from New Jersey, just a clown show.
I worked with a guy that in a previous life knew some of the “original” Sopranos aka the Boiardo family that the show is loosely based on. He was in the body shop business which was a popular money laundering and fraud center for the mafia. He complained how the show wasn’t accurate lol.
Anyway. RIP Tony Surico passed away today.