Planning for the attack was discussed at the Kuala Lumpur al-Qaeda Summit shortly after the attempt , which was held from 5 to 8 January 2000 . Along with other plotters , it was attended by future 11 September hijacker Khalid al-Mihdhar , who then traveled to San Diego , California . On 10 June 2000 , Mihdhar left San Diego to visit his wife in Yemen at a house also used as a communications hub for al-Qaeda . After the bombing , Yemeni Prime Minister Abdul Karim al-Iryani reported that Mihdhar had been one of the key planners of the attack and had been in the country at the time of the attacks . He would later return to the United States to participate in 9/11 on American Airlines Flight 77 , which flew into the Pentagon , killing 184 victims
American Airlines Flight 77
American Airlines Flight 77
USS Cole bombing