Detectives finally arrest a suspect in the Hargan family murders. But at trial, defense attorneys argue a new theory for how the killings might have happened. And that theory might cast enough doubt to throw the entire trial into question. Get ad-free access to episodes of Blood is Thicker: The Hargan Family Killings 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