A woman was murdered in 1974 while hitchhiking to a Chicago art show. 50 years later, investigators found her killer

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A woman was murdered in 1974 while hitchhiking to a Chicago art show. 50 years later, investigators found her *******

Investigators in Wisconsin used genetic genealogy to solve a 50-year-old cold case this week, charging an 84-year-old Minnesota man with ******** a woman who was found ***** in 1974, authorities said.

Mary K. Schlais, 25, was found ***** at an intersection in the township of Spring Brook, Wisconsin on February 15, 1974, according to the Dunn County Sheriff’s Office. Her ****** was ruled a ********* and the initial investigation revealed she had been hitchhiking to an art show in Chicago when she was *******,

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Jon Miller, of Owatonna, Minnesota, was arrested on Thursday after he “confirmed his involvement” with Schlais’ *********, according to Dunn County Sheriff Kevin Bygd. He’s currently in custody in Steele County, Minnesota, and is awaiting extradition to Wisconsin, Bygd said.

“This is a huge victory for our agency,” Bygd said at a Friday news conference. It’s the first time the agency has used genetic genealogy to solve a case, the sheriff said.

For decades, detectives from multiple law enforcement agencies who were assigned to the ********* case received various leads and tips and conducted interviews, but no “viable” suspects were identified, according to the sheriff’s office.

Evidence was also examined and reexamined over the years, but it wasn’t until the agency started working with a team of genetic genealogists at Ramapo College in New Jersey in recent years, investigators were able to identify Miller as the suspect using genetic evidence, the department said.

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can generate leads for unsolved cases by analyzing DNA on top of traditional genealogy research, according to the

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.

It combines forensic genetics, or DNA analysis, with conventional genealogy, or one’s family history, for human identification.

“Agencies can spend thousands and thousands of dollars sending DNA samples to private labs across the country to try and get results and we had a college very willing to step up and help us with this process,” Sheriff Bygd said.

Two sheriff’s investigators who have been working on the case, Dan Westland and Jason Stocker, said at the news conference they spoke with Schlais’ family, who expressed relief and gratitude for the investigation.

The sheriff’s office did not go into detail about what piece of DNA evidence investigators used to solve the case or the genetic genealogy process leading them to the suspect, saying they would leave it for Ramapo College representatives to address at their Monday news briefing.

The sheriff said investigators were thrown a “curveball” while assessing Miller’s family lineage because he was adopted.

“It takes a lot more work that these guys have put in over the last couple of weeks to try and dodge that curveball … We were able to sit down with him and let him confirm his involvement in her ********* yesterday,” he continued.

Westland said when he and Stocker spoke with Miller Thursday, he was “fairly calm about what had occurred.”

“I believe it’s got to even be a relief for him after 50 years of living with this. It’s had to have been on his mind almost every day. You would think anybody with a conscience, it would. So, I think he was done fighting it, personally,” said Sheriff Bygd.

Many of the detectives and former sheriffs who worked on the case over the years have *****, said the sheriff, who added he was “elated” to tell some of his former coworkers who are still alive the case was solved.

“I was actually sitting in a deer stand when I got a text from investigator Westland yesterday and I had a difficult time controlling my excitement,” Bygd said. “… I’ve been through with every investigator that’s picked this up and ran with it and got to a ***** end.”

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