IF this was a HOMICIDE BOMB that exploded prematurely, then for maximum collateral damage there should be projectiles to form the basis for killing shrapnel. This guy was an engineering student, so he would have known about that. No shrapnel damage or marks on anything: trees, sidewalk, buildings, some of it should have traveled quite a ways to shatter a window further away...
PKM was in the stadium Sat. night.
The shock wave that shook her house was Sunday when the police detonated the explosives they collected from the apartment. At least that is my understanding.
I was in the stadium Saturday night and heard the blast -- it was loud. Sunday night around 9:30, I heard a blast that shook my front window -- that was from Norman police blowing up the cache of bomb making supplies they took from the apartment. My understanding is that it was felt pretty much all over town. I am five miles from that site and it rattled my window.
BTW, I was told some windows had to be replaced in Cross.
The 7/7 london devices did not contain shrapnel.