Confirmation of Abdul-Rahman (Peter) Kassig's death came after a review of a video released Sunday by the Islamic State that purported to show extremists beheading several Syrian soldiers, and concluded with a militant claiming to have killed the American.
Death of an American by Islamic State Militants
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Ed and Paula Kassig, in foreground, pray at a vigil for son Abdul-Rahman Kassig at Butler University in Indianapolis, Indiana, on Oct. 8, 2014.