Hard to tell, but the women cover their heads in traditional Muslim fashion, and the signs are definitely in Arabic. However, from the death toll on 9-11, 345 Pakistani citizens, all leagal residents...that is more than 12% of the total. Add the Turks and Yemenis, and you get almost 17% of the total killed. Subtract the some 500 Police, Fire, Emergency, Port Authority, etc. Professionals killed in the line of Duty, and the Citizens of Muslim nations killed reaches a staggering 20%, one in five "civilians". Working backwards, at least some must have been traders employed by Cantor Fitzgerald.
BTW, on Fifth Avenue in Bay Ridge, about the only businesses not owned by Muslims are the Banks.
Gotta leave something for the Jews! :)
Seriously, IIRC, not a single Saudi died 9/11. Damn big complex, with lots of finance types, not to have a single Saudi, eh?