Records: Before he killed, John Keith Miller showed violent streak
- On March 27, 2024, 84-year-old Jon Keith Miller received a life sentence for the killing of Mary Schlais, a crime committed in Wisconsin in 1974.
- This sentencing followed a 50-year investigation that used forensic genealogy to link Miller to Schlais's stabbing and body disposal.
- Miller had a history of violent crime, including armed robbery convictions in Arizona and California and a record of domestic violence noted by his first wife.
- Investigators arrested Miller at his Owatonna assisted living facility in November 2024, where he confessed and pleaded no contest to the murder charges months later.
- Miller is imprisoned for life at Wisconsin’s Dodge Correctional Facility, concluding the long process of solving Schlais's cold case and underscoring his extensive history of criminal behavior.
14 Articles
14 Articles

Records: Before he killed, John Keith Miller showed violent streak
Jon Keith Miller, 84, was sentenced to life in prison March 27, 2024 for the 1974 murder of Mary Schlais, who he stabbed more than a dozen times and dumped in a Wisconsin snowbank. The sentencing culminated the 50-year search for her killer — and led investigators to Miller's Owatonna assisted living facility apartment, where he confessed to the murder. A Forum News Service investigation traced Miller's known history — from his high school gradu…
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