Baxter, John
Aus 9/11 Wiki
Listed as "jet fuel".
He was involved in the "impact scenario of a 757" scenario months earlier:
http://www.historycommons.org/entity.jsp?entity=john_baxter_1
More here:
I can't actually find where he is directly quoted as mentioning fuel but there were also reports of people smelling cordite. The fireball was oviously caused by an accelerant. Either way, he is not a witness to the flight of the aircraft.
Source List: Response