That's sad. I saw her a few years ago on the telly, I didn't know much about her, but I think she'd already "made it" by then. Watching it I thought "WHAT a voice, and a presence... but, unless it's an act, looks like she might have problems in the future though...". I heard afterwards she already had a bit of reputation.
As far as I can remember, everything I heard about her after that was to do with her problems. Never heard/saw her perform like that again...
It's very sad, on the strength of what I saw, I do think she was very talented. But it's all gone now... I feel most sad for her - that no one was able to help her to help herself :(