That would be former FBI agent John O'Neil
No, not him, not FBI. We're talking about the guy that was head of security for the WTC.
Dont you love when you give someone the answer and they refuse to accept it. If they know so much why are they asking?
I didn't see your post but thanks anyway. In my search I found a viewable Frontline program about him called "The man who knew" It's 83 minutes.
http://www.pbs.org/wgbh/pages/frontline/shows/knew/