UPDATE:
Well at least it looks like the Marine Corps is following up on this, for whatever that will do. I support any and all attempts to ruin this asshole's life, just as I would any soldier that acts in such a manner towrds animals or humans.
http://www.foxnews.com/story/0,2933,334709,00.html
War is Hell and I'm sure makes a person devalue life over time and repeated horrific experiences, but it is not an excuse to abandon one's humanity. In this I think the military can do more to help soldiers deal with their experiences.