I agree with you. We don't want to overreach and jump to conclusions, but there are several things about this event that just don't seem right. One of the main ones is what you said. They are releasing absolutely nothing about who the bomber was, even speculation. Even if identification would be difficult for a while (could be), you'd think there would be SOME information by now.
And there is nothing in the newspaper reports from last night with even speculation about who it was. In fact, the Tulsa World is treating the entire thing as a minor event. There seems to be an implicit assumption that it was a student, but that's never stated. We'll see if there continues to be a blackout of information about the id of the individual.
Perhaps they need to do attendance or roll call to see who is missing.
The lack of news after the game on local radio was nothing short of astounding. I heard two guys make a comment about the suicide bomber and they found a second bomb and that was it for radio.
Normally, the media would have been reporting 24/7 but almost nothing.
The article by James Tyree of the Transcript had a lot of quotes and little information.