That was my first thought after wondering how one guy could have done so much damage.
I wondered if it was one of those gang bangers who joined up specifically to improve their skill set. Not badmouthing the military here, but it does happen.
I hear that it’s happening an awful lot lately.
As well one may join and return as a trainer........grateful for their service yet if they did it for criminal enterprise I say doom on em for doing that if it was singular reason for serving.
Just my opinion of course.......:o)
Stay safe !