The best bet is the security service was told by the Administration of OU and the FBI to silence the guard because all of a sudden he wouldn't grant any more interviews. All requests had to go to the security company who just happened to be on contract with OU. This was one of the many connect the dots in this.
Everyone I know refers to the kid as the lone, depressed, suicide bomber who accidentally blew himself up. That is how idiotic some of the statements have been around here. I don't know a person who buys the official line on the OU bomber.
Thanks for the update. If there is any new substantial info about this I would appreciate a ping.