NBC News reports that an FBI agent shot and killed a man who had been interviewed over ties to April's Boston Marathon bombing.

The individual, identified by friends as 27-year-old Ibragim Todashev, reportedly knew Tamerlan Tsarnaev, the older, deceased Boston suspect through the world of Mixed Martial Arts. He had been initially cooperative with the special agent and two Massachusetts State Police troopers who were interviewing him, according to WESH-TV in Orlando. But at some point during the interview process, he allegedly attacked the agent, who then fired his weapon.

The station quotes a friend of Todashev, Khusn Taramiv, who said he was also interviewed.

"(The FBI) took me and my friend, the suspect that got killed. They were talking to us, both of us, right? And they said they need him for a little more, for a couple more hours, and I left, and they told me they're going to bring him back. They never brought him back," Taramiv said.

Taramiv also said that Todashev "felt inside he was going to get shot" by the FBI.

"We are currently responding to a shooting incident involving an FBI special agent," FBI spokesman Dave Couvertier said in a statement, according to NBC. "The agent encountered the suspect while conducting official duties. The suspect is deceased."

In addition to questioning Todashev about the marathon bombing, authorities were investigating if he and Tamerlan had carried out a triple murder on Sept. 11, 2011, in Waltham, Mass., according to the New York Times.

http://www.huffingtonpost.com/2013/05/22/ibragim-todashev-shot_n_3318332.html