WATERTOWN, Mass. -- The suspects in the attack on the Boston Marathon one killed, one on the loose are brothers of Chechen origin, at least one a legal permanent resident of the United States, law enforcement officials told NBC News.
The suspect at large early Friday was identified as Dzhokhar Tsarnaev, 19, born in Kyrgyzstan, holding a Massachusetts driver s license and living in the Boston suburb of Cambridge. He was the suspect in the white hat in surveillance photos from the marathon released by the FBI.
A tense night of police activity that left a university officer dead on campus just days after the Boston Marathon bombings and amid a hunt for two suspects caused officers to converge on a neighborhood outside Boston, where residents heard gunfire and explosions.
His brother, who was killed in a firefight with law enforcement, was identified as Tamerlan Tsarnaev, 26, born in Russia. He became a legal permanent resident in 2007, the officials said. He was the suspect in the black hat in the FBI photos.
Both men were believed to have military experience, and to have entered the country with their family in 2002 or 2003, when the family sought asylum. The nature of the military experience was not clear.
Massachusetts State Police say the brothers spent the night in a Honda CRV and used it to carjack a Mercedes SUV before a deadly firefight with police.
Police said Friday morning at a Watertown news conference that one of the brothers stayed with the carjacking victim for a few minutes and then let him go.
They say one brother drove away in the CRV, and the other one drove away in the Mercedes.
Police say one then ditched the CRV and reunited with his brother in the Mercedes. Authorities say both suspects were in the Mercedes when they encountered police and hurled explosives at officers. That's when 26-old suspect Tamerlan Tsarnaev was killed. The CRV was later recovered in Boston.
The uncle of Dzhokhar Tsarnaev urged his nephew to turn himself while speaking on live television.
Ruslan Tsarni of Montgomery Village, Md., said Friday that 19-year-old Dzhozkar Tsarnaev should turn himself in to police and ask for forgiveness. Officials say Tamerlan Tsarnaev, a 26-year-old who had been known to the FBI as Suspect No. 1, was killed overnight.
The brothers came from a Russian region near Chechnya and lived together in Cambridge, Mass. Tsarni says he hasn't seen them for several years.
He says the family is ashamed. He says he loves the U.S. and respects this country.
DEAD SUSPECT STUDIED ATCOMM. COLLEGE
Tamerlan Tsarnaev, the bombing suspect killed overnight, had studied accounting as a part-time community college student, according to authorities.
Bunker Hill Community College officials say that 26-year-old Tamerlan Tsarnaev was a student there for three semesters: fall 2006, spring 2007 and fall 2008.
Spokeswoman Patricia Brady said Friday they had little information on Tsarnaev other than that he studied accounting at the Boston school.
Tsarnaev had been known to the FBI as Suspect No. 1 and was seen in surveillance footage in a black baseball cap.
Tamerlan Tsarnaev was killed after a chaotic chase and firefight with police early Friday. Authorities were conducting a house-to-house search in the Boston suburb of Watertown for his brother, who was considered armed and extremely dangerous. Massachusetts Gov. Deval Patrick ordered people in Boston and some suburbs to stay inside.
Web users should click on the video above for footage of the firefight and the resulting manhunt courtesy NBC News. Mobile users should click on the video tab in their app.