Yep, both worried about the Jews:
What ideas propelled Atta and the others to act? Witnesses provided part of the answer at the world's first 9/11-related trial, the prosecution of al-Motassedeq, which took place in Hamburg between October 2002 and February 2003. One participant in the Koran circle meetings, Shahid Nickels, said Atta's Weltanschauung was based on a "National Socialist way of thinking." Atta was convinced that the Jews were striving for world domination and considered New York City the center of world Jewry, which was, in his opinion, Enemy No. 1. Fellow students who lived in Motassedeq's dormitory testified that he shared these views and waxed enthusiastic about a forthcoming "big action." One student quoted Motassedeq as saying, "The Jews will burn and in the end we will dance on their graves."
Terrific article which goes into the Nazi roots of 9-11. Highly recommended!