This guy from the picture in Mountaineer's posting looks pretty pale, the bomb apparently was not that damaging. Is there the chance this has nothing to do with Islamic terrorism? That's to say, the bomb sounds a bit "amateurish".
Anyway, the latest update is there is a nationwide search for this guy, it sounds like they have very little on him.
None of the injuries from yesterday's blast are life-threatening, I hope, none the injuries are not bad.