I was a CLEET certified security officer and had worked in Tulsa as a contract security officer
I am trying to recall the name of the CLEET certified security officer that worked in Tulsa that use to be a frequent poster on Freerepublic and showed considerable interest in the OKC bombing up until the time he torpedoed a Congressional investigation with a false affidavit.
Firm that Provided Security at Murrah Building
Reply #181 in the above link may be relevant.