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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 (MP139308) and 1 other source
On August 22, 1981, 21-year-old Joseph "Joe" Grasher was attending a birthday party in the 1000 block of Poyntz Avenue in Manhattan, Kansas. At some point during the evening, Grasher departed the gathering in his red van, accompanied by 26-year-old Stephen "Stevie" Hammerle and two other individuals. This marked the last known sighting of both Grasher and Hammerle, as neither they nor the red van have been located since that night.

The circumstances surrounding their disappearance remain unclear, with limited information available about the events leading up to and following their departure from the party. Despite ongoing investigations by the Riley County Police Department, no significant breakthroughs have been reported, and the case remains unsolved.

Over the years, family members and friends have continued to seek answers and keep the memory of Grasher alive. A Facebook page titled "Missing: Joseph 'Joe' Grasher" has been established to share information and gather support from the community. Similarly, efforts to locate Hammerle have persisted, with dedicated social media pages and community outreach aimed at uncovering new leads.

The enduring mystery of Joseph Grasher and Stephen Hammerle's disappearance has left a lasting impact on their families and the Manhattan community. As of today, March 17, 2025, they have been missing for over 43 years. Authorities continue to encourage anyone with information related to the case to come forward, hoping that even after decades, new details might emerge to provide closure for the families and friends of the missing men.

Last Seen: Aug 24, 1981

Links to Additional Sources (1)

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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 — Missouri
UP5021 • Found Apr 22, 1992
View case
Sex ✓Male
Age 100%Est. 30–40 vs 21 when missing
Race 100%White
Location 75%99 mi away
TimingFound 11 years after last seen
Height 100%5'9" vs 5'9"
Weight 100%165 lb vs 160 lb
Hair 50%Brown vs Blond

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.