'He's got a gun within reach. He's a threat. I need to get a head shot so he won't have a chance to clack himself off [blow himself up].
'That time I used my EOTech red-dot holo sight. He was dead. Not moving. His tongue was out. I watched him take his last breaths, just a reflex breath. 'In that second, I shot him, two times in the forehead. Bap! Bap! The second time as he's going down. He crumpled onto the floor in front of his bed and I hit him again, Bap! Same place.
'And I remember as I watched him breathe out the last part of air, I thought: Is this the best thing I've ever done, or the worst thing I've ever done? This is real and that's him. Holy sh**.
Daily Mail article based on this longer Esquire article.