Boston 'bombers' are brothers from CHECHNYA: One suspect is killed and second is on the run with a BOMB strapped to his chest

 

Scores of heavily-armed police swarmed a Boston suburb this morning as the net tightened around an 'armed and dangerous' suspect of the Boston bombings who remained at large. 

SWAT teams surrounded a house in Watertown on Friday following a massive rush of police vehicles through the area.

'Suspect 2', 19-year-old Dzhokhar Tsarnaev, seen on CCTV wearing a white baseball cap, is on the run and reportedly has explosives strapped to his body. 

The terrorist, dubbed 'Suspect 1' by the FBI, has been named as Tamerlan Tsarnaev, 26. He died in hospital from gunshot wounds and possible blast injuries after a fierce gun battle rocked the Watertown area hours after a police officer was shot dead at the nearby MIT campus.

Tamerlan reportedly had a bomb strapped to his chest when he was killed while he and his brother robbed a 7-Eleven, carjacked an SUV and threw explosives at police officers. The vehicle has been recovered by investigators.

Dzhokhar Tsarnaev posted online he will 'kill everyone because we killed his brother', according to a dispatcher in Watertown.

Explosions were heard at a Boston home this morning as police continue to hunt for a marathon bombing suspect and another possible accomplice.

 

Two people, one believed to be the mother of the men, have been taken into custody at the home in Cambridge where the brothers grew up but are not considered suspects. The home is surrounded by FBI and the bomb squad is on the scene.

The entire city of Boston is on lock down with residents warned to stay indoors, public transport shut down, taxi service suspended and a no-fly zone around the city. 

A transit police officer was critically wounded in the exchange of gunfire with the suspects.

 

Dzhokhar and Tamerlan Tsarnaev are believed to be legal immigrants to the U.S., from the Russian region of Chechnya which has been plagued by an Islamic insurgency stemming from separatist wars.

Dzhokhar was born in Kyrgyzstan, according to NBC. His brother Tamerlan was reportedly born in Russia. The brothers are believed to have moved to America with their family in 2002 or 2003.

The 19-year-old, who attended Cambridge Rindge and Latin School, is an amateur wrestling champion who holds a Massachusetts driving license. He is a registered student at University of Massachusetts - Dartmouth. The campus was ordered closed on Friday morning. 

The older brother Tamerlan attended Bunker Hill Community College and was studying to become an engineer but took a year off to pursue boxing. He is a two-time Golden Glove champion.

A friend of the brothers told CNN that he had known them since 2006 and they were 'normal kids' who partied and occasionally smoked. 

A classmate told CBS that Dzhokhar did not have an accent and that he believed he had always lived in the U.S.

The father of the suspects said that his son Dzhokhar is a smart and accomplished young man. Anzor Tsarnaev spoke by telephone from the Russian city of Makhachkala on Friday.

Anzor Tsarnaev said: 'My son is a true angel. Dzhokhar is a second-year medical student in the U.S. He is such an intelligent boy. We expected him to come on holidays here.'