Hasib Hussain, 18, blew up the Number 30 bus in Tavistock Square, killing 14 people including himself. He left Matthew Murray school in 2003 (now South Leeds high) with GCSE passes in English language, English literature, mathematics, double science, Urdu, and design technology.
He also passed GNVQ business studies with a merit.
Mohammad Sidique Khan, 30, the Edgware Road suicide bomber who killed seven people, was a learning mentor at Hillside primary school in Leeds between March 2001 and December 2004. He was also a part-time youth worker for Leeds council between 1996 and 2002. He grew up in Beeston and was a former pupil at Matthew Murray school.
It has been alleged that Khan helped plot a suicide attack on a Tel Aviv bar in 2003 which killed four, including the bomber Asif Hanif, a Londoner.
Khan flew to Israel on February 19 2003 while he was employed at Hillside primary and left 24 hours later.
Shehzad Tanweer, 22, from Colwyn Road in Beeston, studied sports science at Leeds Metropolitan university. He had attended Wortley high school in Leeds. He killed eight people including himself on a Circle Line train travelling from Liverpool Street to Aldgate.
The fourth bomber Jermaine Lindsay, 19, killed 27 including himself on the Piccadilly Line between Kings Cross and Russell Square. He was from Aylesbury, Bucks. The number of dead was 56 on Wednesday. Around 700 people were injured, with 350 needing hospital treatment. Twenty-seven people are still in hospital, six in intensive care with two critically ill.