If this was a Hollywood movie, another sniper donning shades and a lit cigarette would be holding his ticket plane to Bangkok at this moment... I'm not sure if this is the end of this, but the evidence is pretty strong right now. And if the killings stop, all the better. The paranoia ends when the people stop living in fear.
What's funny is that an article about the guy in today's Dallas Morning News called him a serial loser.