Cold case homicide investigation leads to arrest in another case - WQOW TV: Eau Claire, WI NEWS18 News, Weather, and Sports

Cold case homicide investigation leads to arrest in separate sexual assault

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Glendon Gouker, 41 Glendon Gouker, 41
WAUPACA (WKOW) -- A cold case investigation into a double homicide leads to the arrest of a former Wisconsin man for sexual assault.
 
Wisconsin Attorney General J.B. Van Hollen says Glendon C. Gouker, 41, has been arrested on a charge of First Degree Sexual Assault for an incident in November 1990. The criminal complaint alleges the suspect wore a mask and forcefully took a 20-year-old woman to Taylor Field Park in the Village of Iola, where he sexually assaulted and threatened her. According to the complaint, Gouker said to the woman, "I'm just doing my job; I got paid to do this."
 
A couple years ago, DNA was re-submitted to the State Crime Lab from the sexual assault evidence collection kit. The report in September of 2011 indicated Gouker was a contributor to DNA found in the kit.
 
Gouker is currently in jail in Oklahoma waiting for trial.
 
Gouker is also a person of interest in a double homicide from March 22, 1992. Investigators say Tanna Togstad, 23 and Tim Mumbrue, 35 were stabbed to death at her farmhouse. Togstad was also sexually assaulted.
 
The Waupaca County Sheriff's Department and the Department of Justice continue to investigate the double homicide and believe there are people still living in the area with knowledge of the crime. Waupaca County Crime Stoppers will have a billboard up along Highway 10 outside of Waupaca to encourage people to come forward with information.
 
"The killer, or killers, of this couple left evidence behind when they entered Togstad's home and savagely murdered the victims.  We're now looking to the community for tips to help us identify a match to the DNA left at the crime scene," Sheriff Brad Hardel said.  "With advances in DNA technology, we hope to bring justice for the families of these two young people."
 
Anyone with information about this case should contact the Waupaca County Sheriff's Department at (715) 258-4466, or the Division of Criminal Investigation at (608) 266-1671.
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