Authorities have identified a University of Oklahoma student with Colorado ties as the person who killed himself in an explosion near a packed football stadium.

F-B-I Special Agent Salvador Hernandez says the body is believed to be that of 21-year-old Joel Henry Hinrichs III. A student telephone book lists Hinrichs with a permanent address in Colorado Springs, Colorado.

Hinrichs, a 2002 Wasson High School graduate, was killed when an explosive device detonated around eight p-m last night near Oklahoma Memorial Stadium, where more than 8400 people were watching the Oklahoma Sooners play the Kansas State in a Big 12 Conference game.

There were no other reports of injuries and OU President David Boren says spectators were never in danger.

Hinrich's father, Joel Henry Hinrichs Junior, says he and his son exchanged several e-mails in the last month and nothing seemed out the ordinary.