Alongside his recent Instagram post about Rex Heuermann, Billy Baldwin asked, “23andMe strikes again???” He elaborated on the theory in the comments, writing, “When people allow their 23 and me DNA results to be posted publicly it can often resolve a cold case crime or paternity issue because they can link someones child or niece or nephew to a suspect by their 23 and me results.”
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Baldwin’s questioning may be mere speculation, as other DNA clues have been key in solving the case. In January, a surveillance team sent out a pizza box that Heuermann had tossed into a trash can for testing, per CBS News. In June, the forensic lab compared DNA from the pizza with hair that was found on victim Megan Waterman. The analysis concluded that the “DNA profile(s) are the same.” In addition, several discarded bottles outside of Heuermann’s home were sent out for DNA analysis in July 2022. The profiles matched hair samples from both Waterman and Amber Costello, which allegedly came from Heuermann’s wife. It’s believed that the hair was transmitted to Heuermann’s clothing. His wife had reportedly left the state when the murders occurred and has not been charged.
