In 1986, 16-year-olds Jacob Wideman and Eric Kane were rooming together on a summer camp trip to the Grand Canyon when Jacob fatally — and inexplicably — stabbed Eric. Before long, Jacob turned himself in and eventually confessed to the killing. But he couldn't explain what drove him to do it. This debut episode of Violation, a podcast from The Marshall Project and WBUR, introduces the story of the crime that has bound two families together for decades. Subscribe to Here & Now Anytime for new episodes each Friday. Find a transcript and photos here.