Yeah, thats why it is disputed. I tried to find a more verifiable source; it is oft cited in mushroom fields guides and I think Mushroom John had a scanned newspaper copy on his cite. But I couldn't find much, just vague mentions. The symptoms don't fit with the normal amanita toxin profile (renal failure, hepatoxicity) nor most other toxic profiles. It has remained an interesting anecdote for decades now.......
EDIT - well, I found this, but it doesn't tell anymore than I already did, and doesn't have a linked source either.
(from the shroomery)
A six year old girl ate mushrooms, identified later as P. baeocystis, growing near a conifer stand near her home in Kelso, Washington. She was found by her parents in an ataxic and incoherent state. She was admitted to a local hospital in a convulsive state, with fixed, dilated pupils and warm skin. Her temperature was 106 degrees. She died three days later after developing pulmonary edema.
hmm very interesting, but I would wager just like most other reports of mushroom overdoses they mis-identified the strain. I mean there is no logical reason for why she would have died, even from extremely massive doses, unless she had some sort of extreme allergic reaction. Unless I saw some empirical evidence for this, I just cant believe, because I cant make since of it. AFAIK there has never been a fatal over dose of psilocbe mushrooms
