Another man was 18-year-old Hasib Hussain of Leeds, the son of a fish-and-chips store owner.

NPR: Police: Bombing Suspects Are British Natives

The fourth bomber -- Hasib Hussain -- was delayed and arrived at King's Cross subway station to find it closed.

CNN: Documents give new details on al Qaeda's London bombings

British authorities established after the attack that Siddique Khan, Tanweer and two suicide bombers they had recruited in the UK -- Germaine Lindsey and Hasib Hussain -- traveled to London in June 2005 to conduct surveillance of targets.

CNN: Documents give new details on al Qaeda's London bombings