📍 GermanyThe Hinterkaifeck Murders
The Story
On the night of March 31, 1922, six inhabitants of the Gruber farm were murdered with a pickaxe-like mattock. Investigators found evidence suggesting someone had lived in the attic for days beforehand. The crime scene was undisturbed for days because neighbors feared approaching the farm.
Images
Timeline
Andreas Gruber tells neighbors about strange footprints and attic sounds.
All six residents are killed during the night at the farm.
Neighbors discover the bodies after smoke is seen from the chimney.
Known Evidence
How well-documented and physically verified the case evidence is.
- Munich State Police reports documenting mattock wounds on all six victims.
- Witness testimony that Andreas Gruber reported footprints from the woods to the house and attic noises.
- Evidence the killer remained on the farm feeding livestock after the murders.
- Robbery was unlikely—money remained in the house and the bodies were covered.
Unresolved
What We Still Don't Know
- The identity of the killer and any connection to local residents or migrant workers.
- Whether the attic occupant was the murderer or a separate intruder.
- Why investigators failed to preserve evidence to modern forensic standards.
Hypotheses
Theories
Ranked by plausibility — highest first.
Local Acquaintance Revenge
The killer knew the family and farm layout, possibly a neighbor, former employee, or someone with a personal grievance.
Premeditated Farm Invasion
An outsider stalked the isolated homestead, hid in the attic, and executed the household over multiple hours.
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