Investigators are trying to establish a motive for the Boston Marathon bombings.<br /><br />Specialist teams are waiting to interview Dzhokhar Tsarnaev, the 19 year-old suspected of carrying out the attack.<br /><br />The young man is seriously injured in a Boston hospital, after he was captured late on Friday following a huge manhunt.<br /><br />His elder brother, Tamerlan, was killed in a shootout with police.<br />...<br />http://www.euronews.net/