Like you, I believe that Iraq is the major player.
Also, however, I'm convinced that Syria and Iran are very involved. I'm extremely suspicious of Saudi and Egypt. Most of the terrorists who blew up WTC and 5gon were Saudi and Egyptian. Osama is Saudi.
IMO I think you have hit it on the nose. And even if we are wrong ... so what take that slime ball out first ... if only for a warm-up.
Then we pick that up and cross reference that to our database.
If he is already on the list as to being an associate of terrorists, then WHACK.
Sleep with the fishes.