U.S. 'reasonably certain' drone str

U.S. 'reasonably certain' drone strike killed ISIS mouthpiece 'Jihadi John'
(CNN)He hid his face, but "Jihadi John" was the English-speaking voice of ISIS. His twisted, videotaped taunts and acts of terrible cruelty -- beheading hostages who had gone to the Middle East to report stories and help others -- symbolized the Islamist militant group's depravity and ruthlessness.