The Genetic Search for Christina Castiglione’s Killer
The episode details the 1983 cold case of Christina Castiglione, a Michigan teenager who was abducted, sexually assaulted, and murdered. Although investigators collected biological evidence and developed a psychological profile at the time, the case remained unsolved for nearly four decades. The narrative highlights the recent breakthrough achieved through investigative genetic genealogy, which utilized advanced DNA testing to identify Charles David Shaw as the killer. Though Shaw died shortly after the crime, forensic science confirmed his guilt by matching DNA from his living relatives…
The skinny
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