according to this video report KWTV in Oklahoma City. His roomate was a Pakistani who works in the OU athletic department, Hinrichs is said to have attended the same mosque as Zacharias Moussaoui (the only person charged in connection with the Sept. 11 attacks), and he attempted to buy a large quantity of ammonium nitrate from a Norman feed store four days before his death. http://newsok.com/video/1633639/
The same guy was on the Glen Beck show, and said the kid repeatedly tried to get into the stadium before the blast. The president of the university is not calling it a suicide or an accident, he keeps calling it a "single death". What is that supposed to mean? My take is this, there is no way that someone would go through the trouble of building an explosive device, strap it on his body, then go somewhere quite, just to kill himself. I believe the evidence so far points to a blundered suicide bombing meant to cause many casualties at the OU game.