No, the only reason they'll be punished is because the military probably spends as much on public relations as it spends on new equipment. Anything that could potentially embarrass the military and therefor endanger their outsized budget is crushed as quickly as possible. It's why when one of these stories emerges, it goes viral. It's not that shit like this doesn't happen, they're just experts in covering stuff up, or spinning it. The Pentagon doesn't want their troops portrayed as mostly ghetto or white trash hired killers that get off on a bit of sadism when they can get away with it. No, they're freedom fighters willing to lay down their life for God and Country while extending the olive branch of peace and democracy to the rest of the world.
"Ah, you miserable creatures! You who think that you are so great! You who judge humanity to be so small! You who wish to reform everything! Why don't you reform yourselves? That task would be sufficient enough."
-Frederick Bastiat
-Frederick Bastiat