U.S. 'reasonably certain' that Islamic State militant Jihadi John killed in strike

By Phil Stewart and Mariam Karouny WASHINGTON/BEIRUT (Reuters) - The United States announced on Friday it was "reasonably certain" a drone strike in Syria had killed Jihadi John, a British citizen who became the public face of Islamic State and a symbol of its brutality after appearing in hostage execution videos. U.S. and British officials welcomed the apparent success of the operation targeting Mohammed Emwazi, saying his death, if confirmed, would be a big blow to Islamic State's image and pr