Tsarnaev was also convicted in the killing of MIT Police Officer Sean Collier during the ensuing manhunt. In trying to avoid a death penalty sentence, Dzhokhar Tsarnaev's lawyers contended that he ...

"Biden clarified that the commutations do not apply to cases of "terrorism and hate-motivated mass murder," leaving three men on death row: Dzhokhar Tsarnaev, who carried out the Boston Marathon ...