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Crime Solvers Central
298 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP62404) and 11 other sources
Andrew M. Hildebrand, a 30-year-old man from Oshkosh, Wisconsin, was last seen on May 12, 2019. That same day, he had been interviewed by detectives in connection with a sexual assault investigation. Later that evening, Hildebrand was reported as a missing person to the Oshkosh Police Department, which prompted a welfare check. The circumstances surrounding his disappearance began to deepen when his vehicle, a silver van, was discovered abandoned two days later, on May 14, 2019. The van was located at a boat launch near Auburn Lake in the neighboring Fond du Lac County, a significant distance from his last known location in Oshkosh. This discovery initiated an intensive search of the surrounding area, but yielded no immediate clues as to his whereabouts.

The search for Andrew Hildebrand was extensive, involving multiple agencies and advanced search technologies. The Fond du Lac County Sheriff's Department conducted thorough ground and aerial searches of the area where his vehicle was found. The search efforts also included the use of police dogs, drones, an airplane, a Wisconsin Department of Natural Resources boat, as well as submersible robots and sonar equipment to search Auburn Lake itself. Despite these comprehensive efforts, no trace of Hildebrand was found. Authorities noted that Hildebrand was familiar with the Kettle Moraine State Forest area, a large state forest in that part of Wisconsin. It was also believed that he may have been in possession of a. 22 rifle at the time of his disappearance. Law enforcement officials stated that he had not made any threats to harm the public.

In the days following his disappearance, more information about the context of his last known activities came to light. A warrant was issued for his arrest on charges of first-degree sexual assault of a child. On May 20, 2019, a criminal complaint was filed, charging Hildebrand with two counts of first-degree child sex assault, as well as charges of invasion of privacy and attempted invasion of privacy. The case remains unsolved, and Andrew Hildebrand has not been seen or heard from since the day he vanished. The investigation into his disappearance is ongoing, with the Oshkosh Police Department and the Fond du Lac County Sheriff's Department continuing to seek any information that could lead to his location. The case is a complex one, involving a missing person who is also a wanted individual, leaving family and investigators with unanswered questions.

Last Seen: May 12, 2019

Possible Unidentified Matches (1)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

76%Possible
John Doe — Sheboygan, Wisconsin
UP71986 • Found Jun 21, 2020
View case
Sex ✓Male
Age 85%Est. 30–50 vs 30 when missing
Race 100%White
Location 90%46 mi away, same state
TimingFound 13 months after last seen
Height 75%5'3"–5'10" vs 5'9"

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.