Well, something is happening as a result of him doing his little circus stunt of a prayer. A major news station brought light to this, and so it would be pretty clear if he was hoaxing this thing altogether, as ABC would be caught with their pants down. Not entirely worth the initial publicity, I'd say. So determining that *something* showed up after he did his thing, we can determine that it was a random accident, extra-terrestrials, or humans. Ruling out the first two due to sheer probability, it leaves one option, unless you can give me something more probable?