Kathy Griffin posts sweet tribute to Frasier's John Mahoney

I would always run into John Mahoney at NBC events when we both co-starred on NBC sitcoms, but I didn't get a chance to spend time with him until I ran into him at a restaurant in Oak Park, IL (where I'm from and where he lived). He was a very kind and generous man. Rest in peace pic.twitter.com/WJvjlBq6fB

— Kathy Griffin (@kathygriffin) February 6, 2018