I haven't been this sad over any death outside of my family...
Judging from the comments here, I think many of you agree with this sentiment. It's a new experience for me as I've never really had such a poignant emotional reaction like this for anyone outside of members of my family have died.
I never met the man, never saw him in person, and probably don't know anyone who did and yet I still feel emotionally gutted by his passing. I certainly wish I had been granted such an opportunity, but my life never afforded me the opportunity. The best way to describe it is to say that I feel a sense of loss; a hole wherein no other could have or will ever be. Obviously, like all feelings, this isn't constant, but every time I see him in a movie or on television I feel it.
I'm not sure how or why, but it's clear that this man had a profound impact on many people. Perhaps it was his good nature, his positivity, his smile, the way he conducted himself, his work as an actor, his life outside of acting, or some combination of these, but he was undoubtedly able to find a place in the hearts of many who never actually knew him.
Rest in Peace Michael, you've more than earned your rest. You are one of very few who left this world in better shape than it was before.