I do believe Richard was referred to by John Lucas as Dr J with a jump shot. Obviously that never materialized, and Richard ultimately retired from Basketball by 2003, when both of his knees were shot.
Looking back, I have to think he would have become at least as good as say, a Michael Finley. But I must admit, that quote by John Lucas, however much it was and is an exaggeration, will always be something that I think about in the context of Richard Dumas.
Edit: I also wrote Richard a letter as a kid and I sent it to the Phoenix Suns address for fan mail or whatever. I told him that maybe coach Westphal would give him more playing time if he laid off the drugs. I'm guessing it didn't help