Tamerlan and Dzhokhar Tsarnaev have been identified as the Boston bombing suspects, with authorities closing in on the latter following a shootout.
One of the Boston Marathon bombing suspects was killed with a bomb strapped to his chest after a violent standoff with police in Watertown, Mass., Friday.
Tamerlan Tsarnaev, 26, is dead. His 19-year-old brother Dzhokhar (pictured) is on the run. Officials believe they know the second suspect’s location.
The city of Boston, as well as neighboring towns, are on lockdown after the suspects robbed a 7-Eleven, then shot and killed an MIT police officer.
The duo then hijacked a car at gunpoint, and engaged in a battle with police using gunfire and explosives. Dzhokhar Tsarnaev fled; his brother perished.
The younger, fugitive Tsarnaev is a resident of Cambridge, Mass.
He was born in Kyrgyzstan and arrived with his family in the U.S. in either 2002 or 2003. The Tsarnaev brothers lived in Cambridge but were not students.
His now deceased brother, Tamerlain Tsarnaev, 26, was born in Russia, and became a legal permanent resident in 2007, authorities tell NBC News.
Authorities are telling residents of Watertown, Cambridge, Boston and other neighboring areas and towns to stay indoors and not to answer their doors.
“We’re asking businesses to not open today until we can provide further guidance and information,” said a rep for the Massachusetts state police.
Public transit services have also been suspended.
The FBI released photos of the two suspects early Thursday evening. Just a few hours later, a series of violent events led to a stand-off with the suspects.
A tense week in Boston became even more surreal with the killing of a campus police officer at MIT, and then the standoff in nearby Watertown.
In the confusing first hours, the incidents appeared to be unrelated, but as authorities pieced this together, they realized the events were anything but.
As authorities pieced together the chronology hours later, it appeared that the MIT officer had been killed; then two men had stolen a car at gunpoint.
The driver was released unharmed. Police then pursued the vehicle into Watertown, engaging in a battle with police using gunfire and explosive devices.
One of the suspects was killed, the dead suspect reported by law enforcement authorities as the man in the black hat in the FBI photos released Thursday.
The suspect who was killed was found wearing explosives strapped to his chest, it is believed the suspect still on the loose may be similarly armed.
Dual Boston Marathon explosions killed three people and injured more than 175 Monday near the finish line of the annual event, sparking a manhunt.
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