Let me guess...not blond, Nordic-looking, or clean-shaven...
Well, he could be, after all, they're enough European muzzies floating around (i.e. Albania and converts), but it sure wouldn't help him fit in.
On a side note, a Belgian convert blew herself up near Baghdad, and three German women were arrested for wanting to do the same recently. However, I don't know if they were of Turkish or other muzzie descent.