BOSTON (Reuters) - U.S. Vice President Joe Biden, other leaders and survivors of the Boston Marathon bombing shared messages of thanks and defiance on Tuesday at a tribute to the three people killed and 264 wounded in the attack exactly one year ago.
From Patrick Downes, who lost a leg when a pair of homemade bombs ripped through the crowd at the race's finish line, to Biden, speakers recalled how police officers, spectators and others on the scene reacted immediately to help the wounded amid the chaos on April 15, 2013.
