A triple homicide Killing was committed Committing_crime in Waltham , Massachusetts in the United States , on the evening of September 11 , 2011 , the 10th anniversary of the September 11 attacks Terrorism .

After the bombings Terrorism and subsequent revelations Reveal_secret of Tsarnaev 's personal life , the Waltham murders case was reexamined Coming_to_believe in April 2013 with Tsarnaev as a new suspect .

In May 2013 , Ibragim Todashev , a 27-year-old Chechen native and former mixed martial arts fighter who knew Coming_to_believe Tamerlan Tsarnaev , was shot Bodily_harm and killed Killing in Orlando , Florida , by law enforcement officers who had been interviewing Communication him about the Waltham murders Killing as well as the Boston Marathon bombings Terrorism .

The FBI has alleged Statement that just before he was killed Killing , Todashev made Creating statements Statement implicating both himself and Tamerlan Tsarnaev in the Waltham murders Killing – saying Communication that the initial crime Killing was a drug robbery Robbery , and the murders Killing were committed Commitment to prevent being identified Check by the victims .