Ibragin Todashev, a Chechen who knew Tamerlan Tsarnaev when he lived in Boston, has been shot and killed in Orlando, FL while being questioned by the FBI and other law enforcement.
The shooting is of course being investigated, but the FBI agent involved says he acted in self-defense when Todashev pulled a knife on him.
Todashev apparently confessed to a role in an unsolved triple murder in Waltham, MA that occurred in 2011, and also implicated Tamerlan in the murders. One of the victims was Tamerlan’s best friend.
Todashev apparently knew Tamerlan from their common participation in martial arts.