0 The Unsolved Murder of Jurgen "Yo" Knemeyer: A Cold Case from Mendocino County
- Unsolved Murders
- by CSC Blog
- 02/19/2025
Discovery of the Crime Scene
On August 14, 1999, at approximately 12:30 PM, a Mendocino County Sheriff's Deputy responded to a welfare check at the residence of Jurgen "Yo" Knemeyer in Willits, California. A concerned neighbor had reported that the back door of Knemeyer's home on Hill Top Road had been open since 3:00 AM, with interior lights remaining on—a situation that seemed unusual and alarming. Upon entering the residence, the deputy discovered Knemeyer's lifeless body, bearing clear signs of homicide. The scene marked the beginning of an investigation into a murder that remains unsolved to this day.
Victim Background and Last Known Contact
Jurgen "Yo" Knemeyer was a 56-year-old man at the time of his death. Standing 5 feet 9 inches tall and weighing 185 pounds, he had gray hair and hazel eyes. Originally from Germany, Knemeyer became a naturalized American citizen around 1960 or 1961. He had resided in the Willits area for approximately two decades, living a life that, to many neighbors, appeared quiet and unassuming. The last known contact with Knemeyer was on August 12, 1999, at 9:30 PM, when he spoke with a family member. This timeline suggests that the homicide occurred between that evening and the early hours of August 13. ...Read More