As a case on its own this wouldn’t have been as interesting, but combined with the focus on DNA technology and how it’s changing, this really worked for me. The murders of Tanya Van Cuylenborg and Jay Cook in 1987 went unsolved until 2018, when the cold case detective, Jim Scharf, decided to use genetic genealogy on the case, and suddenly within weeks they had a suspect and an arrest. But the suddenness of events in 2018 was based on decades of cold case detecting, […]