21-year-old JoAnn Bontjes' 1975 cold case in southwestern Minnesota has a new, unmatched DNA sample found.

400 characters: A new piece of evidence, an unknown DNA sample, has been discovered in the 1975 cold case of 21-year-old JoAnn Bontjes, whose body was found in southwestern Minnesota. The Martin County Sheriff's Office has collected DNA samples from several individuals but none have matched the unknown sample. The sheriff's office is actively investigating the murder case and is urging anyone with information to come forward.

April 04, 2024
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