VIDEO: Boston bombing suspect killed in wild firefight with police

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BOSTON, Mass. — The surviving Boston bomb suspect hails from Chechnya and has lived in the United States for several years.

Federal law enforcement sources told Fox News that authorities are investigating whether Dzhokhar A. Tsarnaev, 19, of Cambridge, Mass., and his brother Tamerlan may have had military training overseas.

The two men believed to be the suspects from Monday’s terror attack apparently surfaced just hours after the FBI released their imaged late Thursday afternoon, shooting the police officer, robbing a convenience store, carjacking a man who later escaped and engaging in a wild shootout with Boston police, in which they hurled explosives from their stolen car.

“We believe this man to be a terrorist,” said Boston Police Commissioner Ed Davis. “We believe this to be a man who’s come here to kill people.”

The bombings on Monday killed three people and injured more than 180 others.

A man by name Dzhokhar Tsarnaev won a $2,500 scholarship in 2011 from the city of Cambridge, according to online records.

Tsarnaev’s older brother, Tamerlan, who was killed in a gun battle with police in Massachusetts overnight, previously studied at Bunker Hill Community College in hopes of becoming an engineer. He took off a semester from his studies to practice boxing at the Wai Kru Mixed Martial Arts Center in Boston, according to an online slideshow chronicling his training.

“Tamerlan fled Chechnya with his family because of the conflict in the early 90s, and lived there for years in Kazakhstan before getting to the United States as a refugee,” read a caption by photographer Johannes Hirn.

Another caption referenced Tamerlan’s apparent difficulty assimilating in the United States.

“I don’t have a single American friend, I don’t understand them,” the caption read.

An uncle of the brothers 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, according to Ruslan Tsarni of Montgomery Village, Md.

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