This soldier went specifically to this village and shot up residents and even set some on fire, and then went back to his camp, put down his weapon and surrendered.
Sounds pretty lucid to me. I don't buy many psychiatric defenses. I would say it sounds pretty evident he's guilty. Is he a little deranged? Maybe, but it's no excuse in my book. He purposely went out and shot women and children.

Nobody is more pro-military than I, but this is inexcusable if the initial stories are very close to the truth of this horror.