August 27, 2026 – Fond du Lac Co., Wi- On August 14, 2026, detectives from the Fond du Lac County Sheriff’s Office assisted Madison Police Department investigators in serving a search warrant connected to a Madison PD stalking investigation. The warrant was executed at the suspect’s home in rural Fond du Lac County.
During the search, detectives located books, documents, and memorabilia related to murders and serial killers, along with skeletal remains — including what appeared to be numerous human skulls — and other potentially illegally possessed items.
Upon discovery of this additional evidence, which appeared unrelated to the Madison PD stalking investigation, the Sheriff’s Office obtained a separate search warrant from a Fond du Lac County Circuit Court judge.
Sheriff’s detectives subsequently collected a variety of evidentiary items, including the human skulls and skeletal remains.
Detectives are working with a forensic anthropologist affiliated with the Wisconsin Crime Lab, the Wisconsin Historical Society, the Wisconsin Inter-Tribal Repatriation Committee, and specialized laboratories to determine whether the remains are authentic and whether they are modern-era remains or archaeological Native American remains.
The forensic anthropologist’s initial physical examination determined that many of the remains are likely ancient Native American in origin; however, several of the skeletal remains require specialized forensic testing at a laboratory to determine their origin.
Below is a criminal complaint on Benjamin Larson. Please note, the contents may be disturbing in nature.
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This investigation remains active and ongoing. No additional information can be released at this time in order to preserve the integrity of the investigation.