Troy, you're cool from what I read in this thread. Some people here get really bugged about any mention of drugs and jazz, but afaic, it's a part of the history and should be dealt with as such, objectively, truthfully, and without sensationalism (which also means no moral indignation on either side). The still living, that's a different dynamic. But history is history.
There's no shortage of rumors in this music. Some are actually true, some are exaggerations of truths, some are myths built on truth, some take an isolate incident or two and extrapolate it out into a personality profile, on and on and on. If you weren't there, you can't know. so you ask questions, put what you've heard out for discussion, and see what comes back. It's the only way to learn.
I though that Valerie was actually pretty civil in her response, and she told you what she knew. Others have done the same, it seems, and the results seem contradictory. Just keep in mind that we all have many faces, and that seldom do we show them all to any one person. We're all complicated creatures, some more than others, so judgement is not something to be rendered lightly, if at all.