Boston Marathon bombing suspects of \'Chechen origin\'

FBI photo reportedly shows Chechen brothers Dzhokhar (L) and Tamerlan Tsarnaev The two suspects in the deadly Boston Marathon bombings, one of whom was killed in a shootout with police overnight, are brothers of Chechen origin, NBC News reported Friday. The suspect still at large has been identified as 19-year-old Dzhokhar Tsarnaev, the US network said, adding the two men were legal permanent residents of the United States.
Tsarnaev's older brother, the second Boston bombing suspect who was killed, was reportedly identified as 22-year old Tamerlan Tsarnaev, Russia Today reported.
In the early hours of Friday, Boston Police Commissioner, Ed Davies, confirmed that one of the Boston marathon bomb suspects, believed to be Tamerlan had died in police custody, following an aggressive shootout. Police stressed the other suspect, believed to be Dzhokhar, is still at large, and is most likely armed and dangerous.
On Thursday, American news services reported that two men armed with guns and explosives had engaged in a violent standoff with police. The New York Times reported that the two men were engaged in heavy gunfire and have detonated several bombs.
The incident follows the shooting of a Boston Police officer in the nearby Watertown. One other officer is injured and in hospital. The officer was pronounced dead at Massachusetts General Hospital
The US Federal Bureau of Investigation on Thursday released photos and videos of two men sought as suspects in the Boston bombings, urging the public to help identify them.
"No bit of information, no matter how small or seemingly inconsequential, is too small for us to see," Richard DesLauriers, the agent in charge of the FBI's Boston office, told a press conference, three days after Monday's attack.
The FBI posted several pictures of the two men - who investigators consider to be armed and extremely dangerous - at www.fbi.gov, as well as video footage of the pair.
"For more than 100 years, the FBI has relied upon the public to be its eyes and ears," DesLauriers said. "Somebody out there knows these individuals."
Investigators are poring over evidence gathered in the wake of the twin blasts, which killed three and wounded around 180 others.
DesLauriers said no other information would be released, telling reporters: "This is our focus now."