From ABC Boston Afifiliate WCVB:
WATERTOWN, Mass. - One suspect in the Boston Marathon bombings, Tamerlan Tsarnaev, 26, was killed early Friday morning, while his brother, Dzhokhar A. Tsarnaev, 19, was being sought following the killing of an MIT Police officer and an attack on police officers in Watertown that involved grenades, other explosives and gunfire.
The Associated Press reported that the brothers, identified by authorities as the Boston Marathon bombers, were from a Russia region near Chechnya, and had lived in the United States for an extended period of time.
The man known as suspect No. 2, in the widely-distributed FBI surveillance photos wearing the white hat, is the suspect being sought. Authorities identified him as Dzhokhar Tsarnaev, 19.
Gov. Deval Patrick said there was a "massive manhunt" underway for Tsarnaev.
"We believe this to be a terrorist," Boston Police Commr. Edward Davis said at an early morning news conference. "We believe this to be a man who came here to kill people."
The two bombing suspects were chased into Watertown following the fatal shooting of an MIT Police officer and the carjacking of another person.
The carjack victim said the brothers told him they were the Boston Marathon bombers.
During the pursuit, grenades and other explosives were thrown from car by the suspects and gunfire was exchanged in the area of Dexter and Laurel streets.
"A bomb went off with a huge cloud of smoke, with another bomb and then it was even more chaos on the corner where they kept firing. And there was a black Mercedes SUV that stormed through the corner and hit a police cruiser. And right after that occurred, I saw a police officer, he had his foot on the dead suspect with the gun pointed at him," said Mike Julakis, who lives on Dexter Avenue in Watertown.
Cambridge Scholarship: WCVB
CAMBRIDGE, Mass. -The Boston Marathon bombing suspects are from a Russian region near Chechnya, the Associated Press reported.
The surviving Boston bomb suspect was identified as Dzhokhar A. Tsarnaev, 19, of Cambridge, by the Associated Press. His brother, Tamerlan Tsarnaev, 26, was killed in a shootout with police.
ABC News reported that the brothers are believed, by way they engaged police, to have had paramilitary training.
The uncle, Ruslan Tsarni of Montgomery Village, Md., told The Associated Press that the men lived together near Boston and have been in the United States for about a decade. They traveled here together from the Russian region near Chechnya.
Dzhokhar Tsarnaev is listed on the Cambridge city website as having received a $2,500 scholarship in 2011 that is awarded to high school seniors. He is also listed as a Cambridge Rindge & Latin wrestling All-Star in 2011.
"He was a very sweet kid. There was nothing weird about him. Everyone is just very shocked," said Katherine McDonough, who was the class president at the school when Tsarnaev attended.
In a 2004 article, the Lowell Sun reported that Tamerlan Tsarnaev grew up in Grozny, Chechnya and was a boxer when he attended Cambridge Rindge & Latin.
Russia's North Caucasus region has been plagued by an Islamic insurgency stemming from separatist wars in Chechnya.
Many Chechen commanders have embraced the jihadi ideology and received funding from wealthy Persian Gulf patrons, according to the Russian Federal Security Service.
Workers Cleared to Go Home: WCVB
In the wake of an overnight shootout that left one of the Boston Marathon bombing suspects dead, all Boston residents and residents in several other communities were told to "shelter in place" and MBTA service was halted Friday morning.
A second bombing suspect, identified by the AP as Dzhokhar A. Tsarnaev, 19, of Cambridge, is also believed to be involved with the overnight shootout that left an MIT police officer dead. He remains at large.
Some residents living near the suspected bomber's apartment in Cambridge were evacuated. Evacuees were being taken to the Cambridge police station.
Early Friday morning, police evacuated neighbors from homes near that of the accused bombers on Norfolk Street in Cambridge.
A door-by-door search for the bombing suspect was under way in several neighborhoods.
Anyone who works or lives in Boston, Watertown, Newton, Waltham, Belmont, Cambridge or Allston-Brighton was asked to stay home. No cars were being allowed in or out of Watertown.
At about 1:30 p.m., officials said workers in Boston who were hunkered down at their workplaces were allowed to go home.
Officials have also asked businesses in the affected areas not to open on Friday.
The MBTA has also suspended all MBTA systems and services. All customers at MBTA stations are asked to go home