Details of Disappearance Rieken disappeared from Minneapolis, Minnesota sometime in early November 1970. On November 10, her remains were discovered in a burned-out residence on Keystone Road, north of Milaca in Mille Lacs County, Minnesota. Her body remained unidentified for nearly fifty years.
In February 2019, a DNA match was made and Rieken's remains were identified. Police are still investigating the circumstances of her death.
- Minneapolis Police Department
Updated 3 times since October 12, 2004. Last updated February 13, 2019; case resolved.