Only thing that bothers me is that we actually are not being shown the obvious, because if we watched all seasons closely it has always lead up to his death. As in we should know without being told. The convo about when a hit takes place, things go black. The fact that the hitman has a members only jacket??? The kind of people who are members only are the same that "Join the Club". And whats Tony going through during that episode??? Christophers 3 0' clock dream. Look where the bathrooms roughly situated in regards to where Tonys sitting.
Number one is most likely. Paulie coming in to save him. Throughout all the entire final episodes.. paulie becomes much more aggitated. After Tony taking him for that boat ride it wouldn't be totally stupid to think Paulies the one who has him wacked.