I wouldn't put much faith in our local FBI office either. Norman police actually do a very good job for the little manpower they have for anything of this magnitude.
I've heard local LEOs don't often get much help from the FEDS in any agency - and when they do come in they just "take over". I feel sorry for the Norman PD at this point - they might be just as frustrated as we are. I don't suppose the FBI and other Federal agencies share enough info with the locals...