Oh God, how sad. I was such a fan of his. When I was a little kid, I stumbled across a PBS show where two men talked about movies---TALKED about them!---and got me to think about film in a completely different way. It helped spur a love of movies that has lasted my entire life.
I loved his reviews, even when I didn't necessarily agree with him. He promoted young filmmakers and actors, championed small films and never, ever talked down to his audience. He love films, passionately, and seemed to take an almost moral offense when any filmmaker or studio did a lazy, sloppy job and then tried to sell it to the public.
He loved and cared about the art of film making, which is more than you can say for a lot of people in the movie business.
He will be greatly, greatly missed.