Guess you are speaking of .....a man authorities say died when he detonated an explosive device outside a crowded football stadium
. I have not seen anything posted that would answer that question !
Maybe the young America Jihadist chickened out and after he set down. His backpack bomb got a cell phone call, and he went boom.
I was joking with my wife that maybe he used his personal phone as the detonator and the bomb went off prematurely when his mom called to see how he was doing.