http://news.bostonherald.com/international/view.bg?articleid=93582&format=&page=1A worried mother's phone call from Leeds to police hours after explosions ripped through the London Underground and a double-decker bus gave the first clue as to who was behind Western Europe's first-ever suicide bombings.
His name was Hasib Hussain, 19, a youth from Leeds whose decapitated head was found at Tavistock Square - a tell-tale sign he died clutching the 10-pound backpack of explosives used to destroy the No. 3 bus.
Investigators believe his mates, all about the same age from the same northern city, used similar bombs to blow themselves up aboard crowded subway trains Thursday morning. Two militant Islamic groups have claimed responsibility for the bombings that killed at least 52 people and injured more than 700. Fifty-six people remained hospitalized.