A member of a leftist group is behind the suicide bombing at a U.S. Embassy that killed a security guard on Friday. The Turkish government says DNA tests confirmed Saturday that Ecevit Sanli, a member of the leftist Revolutionary People's Liberation Army-Front, was behind the attack. The group has accused the United States of using Turkey as its "slave," and claimed responsibility for the attack on its webstie saying "Murderer America! You will not run away from people's rage." Turkey is an important U.S. ally, and one of the leading advocates for intervention in the war in Syria.