According to Richard Labeviere,
Dollars for Terror (p. 303 of the English translation,) the order for the hit in Luxor was given at a meeting held a month before the strike, on Oct. 10, 1997, at 94 Dewsbury Rd. in Wembley (London NW, 10), in the house of Khaled Al-Fawwaz, spokesman of the ARC (Advice and Reformation Committee,) the London antenna of Osama bin Laden. bin Laden attended that meeting, so that he was apparently free to enter and exit England at that point. According to Labeviere, Scotland Yard Special Branch was aware of what was decided at that meeting.
ARC, by the way, is the same outfit that that lawyer Paul Gablia in Virginia was investigating when he ended up mysteriously murdered outside Dulles Airport in 1996.
Typo: that name should be Gabelia.