TERROR IN BOSTONA COUPLE HOURS AFTER THE WINNERS OF THE 2013 BOSTON MARATHON CROSSED THE TAPE TO FINISH THE RACE, A BOMB EXPLODED JUST A FEW YARDS FROM THE FINISH LINE, AND 12 SECONDS LATER, A SECOND BOMB DETONATED A FEW HUNDRED FEET UP THE COURSE ON BOY

Smoke hovers over a chaotic scene of injured people and spectators along Boylston Street in Boston, just yards from the Boston Marathon finish line, after a bombing on April 15, 2013.