They included Abu Zubaida , a close aide to Osama bin Laden , captured on March 28 , 2002 ; Ramzi bin al-Shibh , who helped plan 9\/11 from Hamburg , Germany , on Sept. 10 , 2002 ; Abd al-Rahim al-Nashri , the Qaeda operational chief in the Persian Gulf region , on Nov. 8 , 2002 ; and Khalid Shaikh Mohammed , the architect of 9\/11 , on March 1 , 2003 .