Why was Ambassador Stevens in the Benghazi compound on 9-11?

Michael Brown, FEMA Director during George W. Bush's presidency, now has a radio talk show in Denver. I really like him. He has been saying that Ambassador Stevens was in that Bengahzi compound for a purpose on 9-11. What was that purpose, that is being covered up by the White House? Was he negotiating with al Qaeda to release the blind sheik?