Mark Stover trained the dogs of the rich and famous. When Linda Opdycke, the daughter of a multi-millionaire, hired him to train her new attack dog, they started combining business and pleasure. Their partnership lasted for more than a decade before disputes between the two ripped their lives apart. Get early, ad-free access to episodes of Trained to Kill: The Dog Trainer, the Heiress and the Bodyguard by subscribing to 48 Hours Plus on Apple Podcasts. The series is widely available everywhere else you get your podcasts. Subscribe to 48 Hours+: https://apple.co/4aEgENo To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices