I'm sure he was completely sober. PCP, or synthetic drugs (bath salts, spice).
I'm gonna take this moment to warn people who aren't aware. Lock if you must. New drugs like spice, bath salts, and the many numerous experimental chemicals that are unnamed are WAY more dangerous than any drug that you may hear about in any after school special. I work in biomedical research, specifically with long term effects of street drugs. We know what cocaine, heroine, marijuana, MDMA, etc, do to your body. We have no idea what all these new drugs do to your body. Your body is in a delicate balance at all times. You can kill yourself by drinking too much water. Care for yourself. You might be the drunk ******* that cures cancer one day.