ORLANDO, FL (RNN) – Deceased Boston bombing suspect Tamerlan Tsarnaev and a man killed Wednesday during questioning by the FBI were accomplices in a 2011 slaying, according to CNN.
Unnamed law enforcement officials told the Associated Press that Ibragim Todashev, 27, lunged at an FBI agent with a knife during an interview at his home on Wednesday. Agents shot and killed him.
Citing law enforcement sources, CNN reported that, before he died, Todashev confessed to his role in the Sept. 11, 2011 triple murder in Boston and also said Tsarnaev was involved.
Todashev reportedly told investigators the three men were killed during a drug deal after Todashev and Tsarnaev became afraid the men would be able to identify them to police.
Their bodies were found with marijuana dumped on them.
The case had gone cold, but received fresh interest after the April 15 Boston bombing attacks, allegedly masterminded by Tsarnaev.
One of the victims has been described as Tsarnaev's "best friend." Investigators long believed the murders were executed by someone who knew the victims, in part because the apartment the men were killed showed no signs of forced entry.
According to the FBI, on Wednesday, Todashev started a "violent confrontation." Todashev was killed and the agent had to receive treatment for non-life-threatening injuries.
Two Massachusetts State Police troopers and other law enforcement personnel accompanied the agent during the interview, according to the FBI.
"During the confrontation, the individual was killed and the agent sustained non-life threatening injuries," the release stated.
It did not specify who fired the killing shot. Previously, FBI spokesman Dave Couvertier told NBC News a special agent fatally shot a man in custody while conducting "official duties."
The Associated Press reported another spokesman, Paul Bresson, said the agent acted on an imminent threat, killing Todashev.
Khusn Taramiv, a friend and roommate of Todashev, said in a WESH interview they both were questioned for three hours overnight Tuesday. He said the FBI let him leave but held his friend longer.
He acknowledged Todashev knew Tsarnaev, the older of the two brothers suspected in the Boston bombing.
"He had [Tsarnaev's] number in a phone, but he only spoke to him a month before that stuff happened," Taramiv told WESH. "And that's it. He wasn't close friends with him, he just happened to know him."
He said Todashev met Tsarnaev when he lived in Boston two years ago, with both being part of the small Chechen community there. Todashev then moved to the Orlando area.
Taramiv said Todashev and Tsarnaev had talked for a few minutes by Skype weeks before the bombing happened.
"What he was talking about [on their call], it was just ‘How are you doing? How's your family?'" Taramiv said.
He also claimed he knew Todashev did not have any weapons or extremist beliefs.
Todashev had posted bond May 13 after Orange County Sheriff's deputies arrested him on suspicion of aggravated battery. In the arrest report, he stated he had experience as a mixed-martial arts fighter.
According to the FBI, Tamerlan and Dzhokhar Tsarnaev are suspected of detonating two explosive devices near the finish line of the annual race. Tamerlan Tsarnaev died during a getaway attempt from authorities April 18.
Police captured Dzhokhar Tsarnaev. He remains in federal custody and has been charged with multiple crimes, including using a weapon of mass destruction.
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