I don't know if it's been posted in here or not, but I don't feel like going through 20 pages:
http://www.wwe.com/inside/news/benoitpressrelease
The WWE seems to be trying to get out in front of this already. Whether that's tasteless scandal-mongering by the WWE, an attempt to stop tasteless scandal-mongering by the media, or a transparent attempt to head off liability is up to you, but basically, they're trying to say it wasn't roid rage and that, essentially, Benoit was a stone cold psychopath. FWIW, given the facts we know, I happen to agree with the WWE here.
And yes, the WWE bears responsibility to some extent. Perhaps not specifically in this instance, but in general, pro wrestling has led to premature deaths and ruined lives at a MUCH higher rate than any other sport (admittedly, I'm using the term "sport" loosely). But then, you can point the finger at the fans just as easily. We WANT to see bloated freaks of nature; that's part of what makes pro wrestling exciting.