Not saying I'm shocked or anything because he's been getting further out from the public eye since the 90's, but still, what terrible news. I always thought of him as a pretty great actor in Ghostbusters and a pretty great Director for Groundhog Day, so it's sad to see him go. It was refreshing seeing him pop up in Knocked Up for a brief moment, years ago.
Part of me just has to accept that, with cinema being so relatively young as a medium, most of the actors everyone grew up with and enjoyed will start passing away sooner rather than later.