Newsbreak: Advanced DNA Testing Solves Decades-Old Cold Case Murder of Michigan Teen, Uncovering Shocking Suspect Identity

Michigan detectives have solved the 40-year-old cold case of a murdered 19-year-old woman named Christina Castiglione. Using advanced forensic technology, male DNA samples that were collected and preserved during Castiglione’s autopsy were subjected to advanced DNA testing to determine who killed her.

Advanced DNA testing was conducted on DNA samples from the decades-old crime case. The samples were sent to a private lab, where scientists created a genealogical profile that helped identify Charles David Shaw as a suspect. His identity was confirmed through three familial DNA comparison tests, based on a report by CBS News on February 22, 2023.

Shaw died in November 1983, and detectives were never able to find any ties between Shaw and Castiglione. Shaw’s family described him as a sex addict who struggled with mental illness and gender identity. From a young age, he had multiple encounters with law enforcement officials. The cooperation of Shaw’s family during the investigation was paramount to identifying him as the person responsible for Castiglione’s murder.

The Livingston County Sheriff’s Office hopes that Castiglione’s surviving family and other victims’ families awaiting justice for decades will find closure as genealogical DNA continues to help law enforcement advance efforts to achieve justice for victims, as per a report by Fox News on February 22, 2023. Castiglione was described as a nice person, though not really interested in social functions, and lived with her parents in Redford, Michigan. She was not married but had a steady boyfriend at the time of her disappearance.