Manhunt for bombing suspect in Boston area

SWAT teams enter a suburban neighborhood to search an apartment for the remaining suspect in the Boston Marathon bombings in Watertown, Massachusetts April 19, 2013. Police killed one suspect in the Boston Marathon bombing during a shootout and were engaged in a house-to-house search for a second man on Friday in the Boston suburb of Watertown after a bloody night of shooting and explosions in the city's streets. (Jessica Rinaldi/Reuters)

SWAT teams enter a suburban neighborhood to search an apartment for the remaining suspect in the Boston Marathon bombings in Watertown, Massachusetts April 19, 2013. Police killed one suspect in the Boston Marathon bombing during a shootout and were engaged in a house-to-house search for a second man on Friday in the Boston suburb of Watertown after a bloody night of shooting and explosions in the city’s streets. (Jessica Rinaldi/Reuters)