I'm only saying that from what we know. We see and hear all these humiliating acts etc. American soldiers do on Iraqi prisoners, whilst from this other video showing the other side, a beheading.
As for having a right to take his life, well if it was a soldier, then as it's a war and he's the enemy, they have just as much right as American soldiers taking Iraqi lives. If he wasn't a soldier (I can't seem to see whether it specifies this or not on those two sites though), then no, perhaps they shouldn't.
