I dunno. His rants contain a fair number of SAT words, and his sister graduated from Princeton. His history of aberrent behavior suggests psychosis more than stupidity. This would be evidenced if he ever was prescribed an antipsychotic such as Haldol.
CHARLES KRAUTHAMMER: Fifty years ago [Cho] probably would have ended up, more likely, in a state mental hospital, than in a state university.
But from the pictures we’ve just seen, the kind of iconic photograph of the way he was methodical in everything he did, the one thing you can say psychiatrically speaking, is he was not as schizophrenic — that we colloquially think of as delusional or hallucinating. This is a man who planned it out. This was a very methodical — schizophrenics are quite disorganized. He wasn’t. He was too organized.
http://corner.nationalreview.com/post/?q=ZmUyOTRhMmRlMGFiNGFlYWNiYmQ4MTg4OGRhNTc0NzU=
Yeah I know he uses some SAT words. His writing is awful though, childish and uninspired.