Bingo! It was a ME man.
No, not Middle Eastern, South Asian (or Asian as the Brits would call it), Bengladeshi to be more precise. A devotee of the cult of Mohammed, but not from the Middle East.
(Interesting choice of target, though, might have been trying for a Reichstag fire on behalf of Obama while killing kuffar and attacking the U.S. economy at the same time — you can bet if he’d found fellow jihadis instead of the FBI as a source for explosives and had succeeded, Obama would have tried to lay the blame on the Tea Party or other American opponents of fiat currency and used it as an excuse for an attack on our constitutionally protected natural rights.)