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Joan Bue Butterbach left her home at 1431 Garfield Ave, Waukesha WI for Bird Island, MN during the early morning hours of October 5, 1971 to visit friends. She was supposed to continue on from there to the Bue family farm in Chatfield, MN. She was found April 18, 1977, strangled, in the trunk of her 1969 Ford Mustang near the Lamb's Creek boat landing, Tainter Lake in the Town of Tainter, WI, just north of Menomonie, WI.
The Leader-Telegram, Tue, Apr 19, 1977, Page 1 stated that the partially-clothed body was found face down in the trunk. A piece of clothing, possibly a portion of her dress, was knotted tightly around her neck. When she failed to arrive Oct. 9 at the home of her brother-in-law in Rochester, MN, she was reported as missing.
www.websleuths.com
Incredibly, townspeople diving in the lake had known the car was in Tainter Lake for four years prior to it being found but never bothered to report it to the authorities.
"During the summer of 1972, local kids discovered a submerged vehicle in Tainter Lake, Menomonie, WI. They used it to dive from into the cool waters. (This “lake” looks more like a river as it is approximately 50 yards wide. On one side is a Supper Club called Jake’s and directly across, on the other shoreline, is the boat launch that was used to launch the car into the water). The kids had reported to authorities that the car was there and went so far as to break off a windshield wiper to prove their finding. It would be safe to say that many (if not all) of the town’s 11,112 residents knew there was a submerged car in the water. This included the Sheriff of Dunn County, Sheriff Daryl “Corky” Spagnoletti, who took no interest or action. Why?" Sheriff Spagnoletti also had all the evidence from the car destroyed sometime after the car was found.
Sheriff Spagnoletti of Dunn County was in charge of that investigation and also the abduction and murder of 25 year old Mary Schlais, also in Dunn County. Schlais' body was found near 408th Ave, Elk Creek Lake, Township of Spring Brook, WI, 15 miles east of Menomonie, WI, Feb 15, 1974.
www.websleuths.com
Citizens Against Homicide, page 4
Tampering with the throttle assembly isn't something your average person would be able to do. An auto mechanic would more than likely be able to do this.
Waukesha Daily Freeman Wed, Apr 20, 1977, Page 1 & 3
www.newspapers.com
olsonfuneral.com
According to the Waukesha Daily Freeman, Wed, Apr 20, 1977, Page 1, Sheriff Spagnoletti stated that the state crime lab determined that the car had been submerged about Oct 5, the day she left Waukesha.
The Leader-Telegram, Tue, Apr 19, 1977, Page 1 stated that the partially-clothed body was found face down in the trunk. A piece of clothing, possibly a portion of her dress, was knotted tightly around her neck. When she failed to arrive Oct. 9 at the home of her brother-in-law in Rochester, MN, she was reported as missing.

WI - WI - Mary Schlais, 25, Dunn County, 15 February 1974
The body of 25-year-old Mary Schlais was found in a snowy ditch 90 miles east of the Twin Cities in Dunn County, Wis. three hours after she left her apartment to hitchhike to an art show in Chicago. Schlais had been stabbed more than a dozen times. One of the key clues is a black and white...

Incredibly, townspeople diving in the lake had known the car was in Tainter Lake for four years prior to it being found but never bothered to report it to the authorities.
"During the summer of 1972, local kids discovered a submerged vehicle in Tainter Lake, Menomonie, WI. They used it to dive from into the cool waters. (This “lake” looks more like a river as it is approximately 50 yards wide. On one side is a Supper Club called Jake’s and directly across, on the other shoreline, is the boat launch that was used to launch the car into the water). The kids had reported to authorities that the car was there and went so far as to break off a windshield wiper to prove their finding. It would be safe to say that many (if not all) of the town’s 11,112 residents knew there was a submerged car in the water. This included the Sheriff of Dunn County, Sheriff Daryl “Corky” Spagnoletti, who took no interest or action. Why?" Sheriff Spagnoletti also had all the evidence from the car destroyed sometime after the car was found.
Sheriff Spagnoletti of Dunn County was in charge of that investigation and also the abduction and murder of 25 year old Mary Schlais, also in Dunn County. Schlais' body was found near 408th Ave, Elk Creek Lake, Township of Spring Brook, WI, 15 miles east of Menomonie, WI, Feb 15, 1974.

WI - WI - Mary Schlais, 25, Dunn County, 15 February 1974
The body of 25-year-old Mary Schlais was found in a snowy ditch 90 miles east of the Twin Cities in Dunn County, Wis. three hours after she left her apartment to hitchhike to an art show in Chicago. Schlais had been stabbed more than a dozen times. One of the key clues is a black and white...

Citizens Against Homicide, page 4
Tampering with the throttle assembly isn't something your average person would be able to do. An auto mechanic would more than likely be able to do this.
In processing the vehicle, it was discovered the headlight switch on the vehicle was in the “on” position; the ignition was in the“on” position; the spare tire was removed from the trunk and was placed in the back seat; the throttle assembly was taken apart, the spring was removed and it was locked into a wide open position. This allowed the car to be catapulted down the boat ramp and into the water without assistance from a driver.
Waukesha Daily Freeman Wed, Apr 20, 1977, Page 1 & 3

Article clipped from Waukesha Daily Freeman
Clipping found in Waukesha Daily Freeman published in Waukesha, Wisconsin on 4/20/1977. : 1977- Joan Butterbach died 5Oct1971 - found in car in trench ouside of Waukesha, WI, tragically her husband committed suicide 1973 -John J., leaving 1 daughter & 2 sons.


Daryl "Corky" Spagnoletti Obituary (1939 - 2018)
Daryl was born on March 23rd, 1939 and passed away on March 26th, 2018 at the age of 79

According to the Waukesha Daily Freeman, Wed, Apr 20, 1977, Page 1, Sheriff Spagnoletti stated that the state crime lab determined that the car had been submerged about Oct 5, the day she left Waukesha.