These deadly blasts sent shockwaves through Boston as well as the whole country.<br/> <br />It came at the end of a race that thousands of runners aspire to conquer -- and more than a year after the attack the trial is set to begin.<br/> <br />The two bombs killed three, and wounded more than 260 people in 2013's Boston Marathon.<br/> <br />And on Monday, Jury selection for accused bomber -- Dzhokhar Tsarnaev -- believed to have detonated a pair of homemade bombs at the finish line.<br/> <br />The 21-year-old ethnic Chechen faces the death penalty if convicted in federal court. He has pleaded not guilty to all 30 charges against him.<br/> <br />His 26-year-old brother Tamerlan was also named a suspect, and died after a wild gunbattle with police - just days after the bombing.<br/> <br />Experts say it will be virtually impossible to find jurors unaware of the basic details of the bombing. But the judge will seek to find a panel of 12 out of 1,200 prospective jurors.<br/> <br />The trial is expected to last three to five
