Yes, he has a place in Philadelphia.
There's a good documentary about HR: Finding Joseph I. I think I saw it on Amazon? Or Netflix. One of those dealies.
He's had his problems with schizophrenia and debilitating headaches, but he had (bad) brain surgery and it seems like it worked for him. With that and proper treatment of his psychiatric issues, he seems a lot more stable these days.
Mental problems or not, when he was in his prime there was never a performer like him, and there probably never will be. I mean, I know there never will be.