' Tsarnaev 's friend and sparring partner was killed in action . The friend , Brendan Mess , and two others had their throats slit . Note : The crime is being reviewed by ` ` wider set of experts ''
Tamerlan Tsarnaev 's friend and sparring partner was killed in 2011 . The friend , Brendan Mess , and two others had their throats slit . Source : The crime is being reviewed by `` wider group of eyes ''