John Atta Mills, Ghana
President John Atta Mills of Ghana was barely three years into his four-year presidential term when he died of a cardiac-related condition in 2012. Mills became president after winning the 2008 presidential election where he defeated his main challenger, Nana Akufo-Addo, by a slim margin following two rounds of elections.
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Before his rise to power, Mills served as vice president under President Jerry Rawlings and was also the national tax commissioner from 1988 to 1996. As president, Mills instituted a number of far-reaching economic and social reforms that earned him both local and international commendations. Mills died at 68 on July 28th, 2012 at a military hospital in Ghana.