Man identified as Ibragim Todashev, who reportedly knew Tamerlan Tsarnaev as both were mixed martial-arts fighters
Ibragim Todashev, pictured, is believed to be an associate of Tamerlan Tsarnaev
An FBI agent has shot and killed a Chechen man with alleged ties to deceased Boston bombing suspect Tamerlan Tsarnaev, in what was described as a "violent confrontation" in the early hours of Wednesday in Orlando, Florida.
Officials said the man, identified as 27-year-old Ibragim Todashev, was being interviewed about his friendship with Tsarnaev when he tried to attack an agent with a knife. The FBI confirmed the agent sustained "non-life threatening injuries" before shooting dead his assailant.
Law enforcement officers reportedly visited Mr Todashev at his apartment late on Tuesday night. Mr Todashev, who had been living in the US for the past five years, spent some of that time in Boston, and came into contact with Tsarnaev through the mixed martial arts community. Authorities suspect the pair of a gruesome, unsolved triple murder, committed on 11 September 2011, the 10th anniversary of the 9/11 attacks. Brendan Mess, Raphael Teken, and Erik Weissman were found with their throats cut at an apartment in Waltham, Massachusetts; their bodies were covered with marijuana. Tsarnaev had previously described Mr Mess as his best friend, though the two had reportedly fallen out.
Comment: What did they know?