Through examining the murder trial of Utah doctor, John Wall, Alexis and Billy discover what can happen when two experts look at the same evidence and come up with opposite conclusions. To follow the Unraveled investigations even further, stream the specials exclusively on discovery+. Go to discoveryplus.com/unraveled to start your 7-day free trial today.* *discovery+ is currently only available for US subscribers. See acast.com/privacy for privacy and opt-out information.