Saad Al-Faghi

From 9/11 Encyclopedia:

Due to an interview with Kenneth Timmermann in July 1998, Saad al-Faghi, a Saudi dissident living in London, was well informed about Bin Laden's activities and his "group":
"They believe they belong to the jihad, not by command but by faith. They are very dangerous." 
http://www.sauerbreyonline.com/timmermanArticle.htm (originally in Reader's Digest and in the Wall Street Journal). 

But after September 11th, according to Matthias Broeckers (->), he made jokes on the influence of Al-Quaeda and claimed in an interview with PBS Frontline,
that the so called Al-Quaeda group was in fact a list of every visitor of Bin Laden's "living room". 

Source: http://www.heise.de/tp/deutsch/special/wtc/11242/1.html