I doubt it, if one gets killed it will be by an outside the Mafia-type thing. If those kids Gravano had shaken down when he took over their ecstasy ring had killed him, I wonder if the government would have said Gotti or the Mafia did it. With all of them out there a few are going to get involved in crimes and one will eventually get killed by whomever they get involved with.

Regarding Bulger, many of those hard core prison inmates hate rats in a more passionate way than the Mafia. It's just a thing in prison with guys who learned that mentality in there.