I've only read the past five or so pages of this thread, but I'm going to jump in here because I just posted this on a different thread, oblivious to the debate raging on this one.
I like taking drugs. Not so much as I did in my youth, but still. It's a common human impulse and I don't think there's anything inherently wrong with it, though one has to be careful about the dangers. I also have a pretty high tolerance -- not quite up there at the Keith Richards level, but closer to that end of the spectrum.
Recently I injured my back, and the urgent-care doctor prescribed Vicodin and Valium simultaneously. I felt like I'd hit the jackpot. It made the back pain worth it! (Am I starting to sound weird? Sorry.)
I was kind of amazed that he'd let me take those two both simultaneously. Plus, I still had some other (completely ineffectual) drugs that my regular doctor had given me the day before. I quit taking those, though theoretically I could have continued. I figured the new doctor must know what he's talking about, so I went ahead and took them, with predictably enjoyable effects.
But when I think about throwing Xanax and Oxywhatever and all those other things into the mix ... well, that is a huge, huge scary amount of stuff.
It's not a matter of blame or fault or accusations of wrongdoing -- any such issues are beside the point and tragically irrelevant now anyway. But I do think that this was more than just a natural mistake that anyone might easily make.
I don't think those who say this have any intention of hurting Heath or his loved ones. They're just voicing normal curiosity and concern about the puzzling, tragic death of someone we all cared about, an event that has deeply saddened us all.