Mihdhar bought a fake ID on July 10 from All Services Plus in Passaic County , New Jersey , which was in the business of selling counterfeit documents , including another ID to Flight 11 hijacker Abdulaziz al-Omari . On August 1 , Mihdhar and fellow Flight 77 hijacker Hani Hanjour drove to Virginia in order to obtain driver 's licenses . Once they arrived , they scouted out a 7-Eleven convenience store and a dollar store in Falls Church , and found two Salvadoran immigrants who , for $ 50 each , were willing to vouch for Mihdhar and Hanjour as being Virginian residents . With notarized residency forms , Mihdhar and Hanjour were able to obtain driver 's licenses at a Virginian motor vehicle office . Flight 77 hijackers Salem al-Hazmi and Majed Moqed , and United Airlines Flight 93 hijacker Ziad Jarrah used the same addresses obtained from the Salvadorans to obtain Virginian driver 's licenses
Flight 11
American Airlines Flight 11
Khalid al-Mihdhar