Fifty years ago, Mary Schlais was murdered and left in a rural Wisconsin ditch. For decades, decades searched for her killer. Now, thanks to a new scientific discipline called Forensic Genealogy, her killer has finally been found. Fifty years ago, Mary Schlais was murdered and left in a rural Wisconsin ditch. For decades, decades searched for her killer. Now, thanks to a new scientific discipline called Forensic Genealogy, her killer has finally been found.
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