Police sealed off densely populated portions the Boston metro area early Friday after a violent night of chasing the Boston Marathon terror suspects left one of the men and a police officer dead.
The city's subway, bus and Amtrak train systems have been shut down. Taxi service across the city was suspended. Every Boston area school is closed.
Police shot one of the men dead after a wild car chase through Watertown in which authorities say they hurled explosives at pursuing officers.
Several sources told CNN that the dead suspect has been identified as Tamerlan Tsarnaev, 26. The one still being sought is Dzhokhar Tsarnaev, age 19.
He had bullet wounds and injuries from an explosion, according to officials. The second man apparently escaped on foot. the Russian Caucasus and had moved to Kazakhstan at a young age before coming to the United States several years ago.
The man identified as Tamerlan Tsarnaev, the older brother, had studied at Bunker Hill Community College and wanted to become a engineer
The man died at Beth Israel Hospital.
They ordered one suspect out and commanded him to strip down completely naked before putting him in a patrol car, which did not leave the scene.
The man was later released and is not a suspect in the case.
The brothers that set off the explosions have signed their own death warrants. Within 48 hours the FBI was able to identify and locate them. They killed one brother and the other barley escaped on foot. FBI and local police
