<p>In this episode, Gemma and James discuss the murder of <strong>Sierah Joughin</strong> in Delta, Ohio, in 2016, and the murders of <strong>the Otero Family, Katherine Bright, Shirley Vian, Nancy Fox, Marine Hedge, Vicki Wegerle, and Dolores Davis - </strong>all victims of Dennis Rader, or "BTK"</p>