Genealogy team explains how they helped solve WI cold case [Video]

The college staff from New Jersey cold-called the Dunn Co. Sheriff’s Office after finding Mary Schais’ case online and offered to help.

MENOMONIE, Wis. — “If you worked for this agency for any amount of time, you knew about Mary Schlais and her case,” Sgt. Jason Stocker said at the beginning of a press conference held at the Dunn Co. Sheriff’s Office in Menomonie, Wisc.

The 50-year-old mystery of who killed Mary Schais stumped Dunn County Sheriff’s investigators since the day they found her stabbed to death on the side of a rural road.

But they say the mystery ended with a confession from 84-year-old Jon Keith Miller.

“He did inform us that as soon as he opened the door, he knew why we were there,” said Dunn Co. Investigator Dan Westland.

What brought Dunn County investigators to Miller’s door in Owatonna was a new investigative method that has been …