Casa Grande grandfather fights in first amateur MMA event Click here to read from the publication source: http://www.kpho.com/story/26590172/casa-grande-grandfather-fights-in-first-amateur-mma-event CBS 5 – KPHO PHOENIX (CBS5) – There are people in the world who prove to us every day that age shouldn’t stand in the way of anything. For a Casa Grande resident, his main job is to