Podcast:Dateline NBC Published On: Thu Dec 31 2020 Description: In this Dateline classic, life seemed perfect for Mark Stover. He had a successful career as a “dog trainer to the stars” on a beautiful island paradise. After a tough divorce, he’d recently found love again. Yet friends said he walked around in a constant state of fear. Could he sense the danger no one else could see? Keith Morrison reports. Originally aired on NBC on January 21, 2011.