Very few people have had the good fortune of fame, money and the luxuries in life. They are blessed in one way and sometimes cursed in another.
Who's to say what brought Robin to drugs, and the unfortunate development of Parkinson's. He must have been a tortured soul behind all the genius, to make people laugh.
I know this has made me somewhat sad. He seems to be a genuine caring person. Depression is a terrible disease, that someday may be understood, by more people. My hope is that his death will open more avenues to understanding the symptons of depression, and people recognize when someone they love, is in a dangerous state of mind, to help prevent senseless tradedy's.
May he rest in peace.
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).