FILE - This undated file photo provided by the Kassig Family shows Peter Kassig standing in front of a truck filled with supplies for Syrian refugees. A new graphic video purportedly produced by Islamic State militants in Syria released Sunday Nov. 16, 2014 claims U.S. aid worker Kassig was beheaded. (AP Photo/Courtesy Kassig Family, File) (The Associated Press)
BRISBANE, Australia – The White House says the U.S. intelligence community is working to determine the authenticity of a video that purports to show that Islamic State militants have beheaded American aid worker Peter Kassig.
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