Sherburn, Minnesota – A breakthrough in a decades-old murder investigation has reignited hope for justice in the small town of Sherburn, Minnesota. A DNA sample recently discovered at the site where 21-year-old JoAnn Bontjes was fatally shot and left in a roadside ditch in 1975 has sparked new leads in the case, Martin County Sheriff Jeff Markquart revealed in a statement.
Authorities have sent the unidentified DNA sample to the state Bureau of Criminal Apprehension for analysis, marking a significant step forward in the investigation. Sheriff Markquart expressed determination in identifying the source of the DNA, stating, “We are in the process of trying to determine whose DNA this is.”
Despite comparing the sample with DNA from numerous individuals, no matches have been found, indicating that the DNA belongs to an unknown contributor. JoAnn Bontjes, a young woman who operated a beauty salon in Sherburn, went missing after leaving the American Legion club in Trimont on October 2, 1975.
The following day, her lifeless body was discovered in a ditch near a cemetery, having suffered a fatal gunshot wound to the head. The investigation revealed that her car was found two miles from the scene, with signs suggesting foul play, such as tire tracks leading investigators to suspect that another vehicle had intercepted her car.
Following Bontjes’ tragic death, reports emerged of sexually suggestive phone calls made to local beauticians leading up to the discovery of her body. The case remained unsolved for nearly five decades, leaving the community deeply unsettled and yearning for closure.
Authorities are urging anyone with information related to the case to come forward and assist in bringing justice to JoAnn Bontjes and her loved ones. Sheriff’s Sergeant Matt Owens can be reached at 507-238-3167, or individuals can provide tips anonymously through the BCA tip line at 877-996-6222.