Though you might think people who could kill without remorse would make perfect fighters, in reality it can be difficult to make it as a soldier without a conscience.
The verdict came after a bizarre trial that was heavily covered by the national media and renewed focus on the problem of mental health among America's veterans.
Neither Chris Kyle nor The Sun's anonymous British Marine are actually the best sniper ever. But it's a weird point of pride either way.
Michael Moore spoke to VICE at length about his thoughts on 'American Sniper,' snipers in general, Sarah Palin, PTSD, that time Clint Eastwood threatened to kill him, and a whole host of other issues swirling around the media circus at the moment.