Hadayat: Egyptian Terrorist?

DebkaFile is reporting that "Hesham Mohamed Hadayat Who Attacked El Al Ticket Line at Los Angeles Airport Was an Egyptian Jihadist Associated with Egyptian Suicide Pilot Batouty Who Crashed Egyptair 990 in 1999 Killing All 217 Aboard." This seems to be a rather bold assertion:

During his ten years in the United States, he was a secret operative of the Egyptian Jihad who maintained undercover links to the same Jihad cell in Brooklyn, New York, as the “blind sheikh” Abdul Rahim Rahman and Ramzi Yousef. Both are doing time for perpetrating the first attack on the New York World Trade Center in 1993...Since the attack, the possibility that he arrived in America as a sleeper terrorist must be seriously addressed. US investigators realize he was not a lone operative and are seeking his accomplices in such matters as setting up the hit...