"I don't have any knowledge of how and why his bomb exploded, but if it's possible his handlers set it off, what do you think of this as one possibility? His handlers knew they needed a lily-white, and all of a sudden, he's under suspicion."
I was wondering that earlier today. Maybe they thought he wouldn't do it and set it off themselves from somewhere else in the area.
my hubbie suggested that maybe it was timed to go off in the football stadium stands and he ran out of time..was trying to shut it off.