At the time of the "suicide" blast a poster here on FR was in touch with a relative outside the stadium. This relative said he was told by police on the scene that several young men (who ran away) were trying to attach explosive devices to the parked busses.
Oh, there's even more than that, but it's too much to detail.....if you've been following the OU bombing threads, you'll know.....
These are not the droids you are looking for...
I go to OU. This guy has been in several of my classes, including two that I am in right now. He was a very odd guy. A real loner. In his Design class, he came up with a unique way to make tracer rounds for a 50 cal. From what I have heard around campus, he was very facinated with explosives. Several of my fellow students and I think it may have been accidental. The bench he was sitting on, is very close to the bus stop, so it is possible he was waiting for the bus and one of his devices malfunctioned.