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Grant Imahara, former host of Discovery Channel's 'Mythbusters,' dead at 49
Actor Grant Imahara arrives for The Geekie Awards 2014 held at Avalon on August 17, 2014 in Hollywood, California. (Albert L. Ortega/Getty Images)Grant Imahara, a former host of the Discovery Channel show “Mythbusters,” reportedly died on Monday of a brain aneurysm.