Overview
- Detectives executed a search warrant on Thursday, July 16, at the Campbellsport home where five-year-old Robert “Bobby Jo” Fritz lived and recovered material officials call potential evidence.
- The initial finding led to a larger-scale excavation in the home's basement that investigators completed this week while working with the Wisconsin Department of Justice Division of Criminal Investigation and the state Crime Lab to preserve and process items.
- Crews removed roughly 500 five-gallon buckets of soil—about 30,000 pounds—and sifted material by hand during the excavation before returning the property to the owner, who authorities say has no connection to the case.
- All items collected will be sent to specialized laboratories for analysis, a process officials say could take months or longer than a year, and investigators say new interviews and file reviews produced the probable cause for the warrant.
- Authorities are asking anyone with information to contact Detective Tyler Tikkanen at 920-929-3384 or the anonymous Fond du Lac County Tip Line at 920-906-4777 and note age-progression images and the child’s last-known May 14, 1983 sighting remain part of the public record.