Overview
- Detectives executed a search warrant on July 16, 2026, at the Campbellsport home where Robert “Bobby Joe” Fritz lived and located potential evidence that led to a larger excavation in the home's basement.
- Fond du Lac County detectives are working side by side with the Wisconsin DOJ Division of Criminal Investigation and the Wisconsin DOJ Crime Lab to collect and process material from the excavation.
- The sheriff's office has declared the matter an active investigation and is restricting public details to avoid compromising forensic work or investigative strategy.
- Officials have asked anyone with information to contact Detective Tyler Tikkanen at 920-929-3384 or leave an anonymous tip on the Fond du Lac County Tip Line at 920-906-4777.
- Fritz vanished on May 14, 1983, at age five and age-progression images from the Wisconsin DOJ Clearinghouse remain part of the record as authorities seek evidence that could provide answers and closure for his family.