In 1976, William Bradford Bishop used a sledge hammer to brutally murder his wife, mother and three sons. He fled to the Great Smoky Mountains, where the skills he learned as a U.S. foreign agent quickly made him the world's toughest criminal to catch. This is the story of a picture-perfect life gone wrong -- and of a killer still, to this day, on the run: Download the Opposing Views app for more: smarturl.it/MoreOpposingViews | Opposing Views