Hit up Google News. Apparently between 1986:

http://www.nytimes.com/1986/04/17/nyregion/motion-for-secret-jury-in-rackets-trial-denied.html

And 1987:

http://www.nytimes.com/1987/08/27/nyregi...ed=3&src=pm

He got bumped up from "reputed captain" to "reputed underboss". Unfortunately there isn't much from after everyone turned states.