Too quick to assume it's substance abuse....

His current state could very well be the result of a mild stroke.

So many idiots just pouncing on him, assuming it's substance abuse.
If it is....addiction is a horrible demon, and he should not be castigated for having one.
It's sad and scary and incredibly difficult. And chances are....some of the people you know or idolize have one, too.

And if a stroke is what has caused him to be in the condition he's currently in....many of you should feel like real assholes.