[MrLeRoy]

I remember a number of utterly berserk crimes for which PCP always appeared to be the common denominator.

So it was conclusively determined that no other substances were involved, and that the berserkers had no preexisting psychoses?

The name Stephanie Roper comes to mind more than anything else.

You can't draw reliable conclusions from a single data point. Again, that address is http://www.freerepublic.com/focus/news/818715/posts; educate yorself or not as you choose.

[Hacksaw]

So it was conclusively determined that no other substances were involved, and that the berserkers had no preexisting psychoses?

That has to be it - now on the other hand if they were drinking...