Ibragim Todashev, a friend of the suspected Boston Marathon organizers, attacked an FBI agent from Massachusetts during questioning about the blasts on April 15 and three murders in Walthem, including Brendan Mess in September 2011, RIA Novosti reports.
Todashev admitted murder and involvement of the older Tsarnayev brother.
Chechen Leader Ramzan Kadyrov has confidence in innocence of Todashev. He emphasized that the Tsarnayev brothers were citizens of the US and had nothing to do with Chechnya.
