Police officers walk near a crime scene Friday, April 19, 2013, in Watertown, Mass. The two suspects in the Boston Marathon bombing killed an MIT police officer and hurled explosives at police in a car chase and gun battle overnight that left one of them dead and his brother on the loose, authorities said Friday as thousands of officers swarmed the streets in a manhunt that all but paralyzed the Boston area. (AP Photo/Matt Rourke)
Gallery: Boston manhunt continues Friday evening, April 19
Apr. 19, 2013 @ 09:19 PM
A manhunt for the suspects in the Boston Marathon bombings continued into Friday evening.