That's how the Americans handled the werewolves in their sector of Germany, after WW II. Does anyone else remember seeing movie clips of American soldiers conducting such trials, and executions? I do.
Then, the US could return the body to Iran. It would not be necessary to pin a note to his chest suggesting that other Iranians ought to think twice before they sneak into Iraq in civvies, to fight outside the Geneva Conventions.
Congressman Billybob
I think Iran is holding two Americans against their will. If so, release them and we will release the bozo we have.