That's what I am thinking as well -- detonating from somewhere else. I think it was an accident it blew up when it did -- not intentional but have to admit that I am really glad it did blow up when it did. We walk right by there going to and from games.
That picture blew me away after the explosives from his apartment that were detonated last night by Norman Police that shook my window and I am five miles away -- I drove to make sure this afternoon. That was no little amount of explosive material.
Norman and OU had some angels looking out for them that night. In my opinion, this guy did not intend it to be a lone suicide, but a massacre.