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Donald "Don" Blankenship, former chief executive officer of Massey Energy Co., exits the Robert C. Byrd U.S. Courthouse in Charleston, West Virginia, U.S., on Thursday, Dec. 3, 2015. Blankenship, one of Appalachias last coal barons, was found guilty of plotting to speed up production by ignoring safety rules at a company mine that later blew up killing 29 workers. Calvin Mattheis/Bloomberg via Getty Images