I have lived in LA all my life, I have experienced things, seen things, dealt with people in this city, and I know the difference between a seizure, a mentally disturbed person, and someone who is on drugs. The guy was most likely on a cheap hallucinogenic kicked with PCP and heroin. There's a look and a behavior to watch out for, I saw it a bit when I was living down by LAX.
Every time I'm at that WM, there's a police disturbance inside or out. It's pretty gross how some folks treat that neighborhood.