In all the reports I have seen they have never said unequivocally that the victim said he had a bomb, they have said instead that; he indicated he had a bomb, he suggested he had a bomb, he made some kind of reference to a bomb.

Was the victim even speaking english? No one has said.

It will be difficult to have witnesses give an unvarnished account since ALL the passengers were marched off the plane with their hands on their heads and interrogated for several hours. This kind of debriefing that in effect had witnesses under arrest without the ability to continue traveling or communicating with each other is a severe kind of intimidation that can bias anyones account of what they saw and heard.