Diane Olkwitz

Death by Force

Do you know who murdered 20 year old Diane K. Olkwitz in 1966?
2023 Update:
In October 2023, Menomonee Falls Police announced Clarence Tappendorf as the individual responsible for Diane's murder based on physical evidence that was found. Unfortunately, Tappendorf died in 2018.


On the evening of November 3, 1966, 20 year old Diane J. Olkwitz was found stabbed to death in the Kenworth Manufacturing Plant, where she worked, in Menomonee Falls, WI. Her case remains unsolved.