In a chaotic, violent overnight that began with a robbery, the fatal shooting of a MIT police officer and a stolen car chase, police officers traced Boston marathon bombing suspects from Cambridge to Watertown, amid reports of further gunfire and explosions. During the chase, one suspect was killed, according to police, and a second remains at large. "We believe this to be a terrorist," Boston Police Commissioner Ed Davis said. (See photos of the search as it continued through Friday.)
This video appears to have been taken by a Watertown resident of a shootout in Watertown overnight:
(See photos of the search as it continued through Friday.)
This program aired on April 19, 2013. The audio for this program is not available.