Fond Du Lac Police DepartmentFOND DU LAC, Wis. (CBS 58) -- The Fond Du Lac police are looking for 86-year-old Diane Grohskopf, who was last seen Thursday morning, Jan. 29, near Ducharme Ct. in Fond Du Lac. She was last seen leaving her residence in her 2024 Gold Mazda CX-30 with the WI license plate AYG876, around 11 a.m. and has not returned home. Fond Du Lac Police DepartmentPolice say she has ties to Sheboygan area and has frequented a casino in Green Bay in the past. Grohskopf is a white female standing around five feet six inches tall and weighs about 169 pounds. If you or anyone you know has information about her whereabout, contact the Fond Du Lac Police Department at 920-322-3700.