BOSTON, MA. 04/ 15 /13: MARATHON TERROR at the finish line, smoke still in place on the right from the first bomb explosion which killed one occurred at 2:50pm with police and others running to respond. A second bomb goes off in a fire ball that killed two more, 12 seconds later. In all hundreds were injured by the attack on the 117th Boston Marathon. In pursuit for 102 hours by police and agents that mounted the largest manhunt in regional history ended with the suspect terrorists Tsarnaev brothers, one killed in a shootout, the other captured hiding in a motorboat at a suburb backyard only miles away from the Boston crime scene.