Not according to her. She was the one that encouraged him to stop taking one of the three meds he was on. He choose the wrong one to quit, or so it appears.
from the link above:
Jessica Baty said Tuesday that her boyfriend of two years had been taking Xanax, used to treat anxiety, and Ambien, a sleep agent, as well as the antidepressant Prozac.
Probably it was the Xanax that was making him feel like azombi. The Prozac was probably causing the sleep problems being treated with the Ambien.
But since he was "interested in 'peace and social justice'", I guess it's all OK. Maybe that's why he picked a Geology class, rather than a psych, sociology or "peace studies".
Evil geologists rape the environment, don't you know. Even female ones, as four of the five he killed were.
Of course the real reason was that he was under the evil influence of the holster and magazines he bought from the same source as the Va Tech killer had used, and been enthralled by.
Weren't these the same combination of meds Heath Ledger OD'd on?
Probably it was the Xanax that was making him feel like azombi. The Prozac was probably causing the sleep problems being treated with the Ambien.
Xanax...a wonder drug for many, but one should not stop it suddenly (obviously). Depending on the dosage, it may takes weeks to step it down to avoid side effects.