Bavarian State Police investigation commenced April 4, 1922, following discovery of six deceased individuals at Hinterkaifeck farmstead. Forensic examination indicated deaths occurred between March 31-April 1, 1922, caused by blunt force trauma from farming implement. Evidence suggests perpetrator remained on premises post-incident. Investigation involved interrogation of 100+ persons of interest. Case transferred to Munich Police 1923. File remains active cold case. Physical evidence preserved at Bavarian State Criminal Police archives.
CASE FILEMysteryUncertain
The Hinterkaifeck Axe Murders: Germany's Unsolved Farmhouse Massacre
Case Summary
Six family members brutally murdered with farm tools at isolated Bavarian farmhouse. Killer may have lived in house for days after massacre.
Official Narrative
Evidence Archive
4 itemsPhysical
Crime Scene Physical Evidence and Forensic Analysis
Munich Police forensic investigators led by Detective Inspector Georg Reingruber conducted detailed crime scene analysis beginning April 4, 1922. The investigation was unusually thorough for the era, with photographs, measurements, and evidence cataloging that would be considered advanced for 1920s police work. Medical examiner Dr. Johann Baptist Aumüller performed autopsies on all six victims between April 5-7, 1922. Forensic analysis revealed all victims died from blunt force trauma caused by a mattock - a farming tool found at the scene covered in blood and hair. Andreas and Viktoria Gruber were killed in the barn, their bodies showing multiple skull fractures. The four other victims - including 7-year-old Cäzilia - were murdered in the house, with evidence suggesting they were killed as they investigated sounds from the barn. Hair and tissue samples were preserved, unusual for the period. Original evidence files remain in Bavarian State Criminal Police archives in Munich, including some crime scene photographs and forensic reports that are not publicly accessible online. The preservation of physical evidence from 1922 was exceptional and continues to allow modern forensic review. Could DNA analysis of preserved biological evidence finally identify the killer after 100 years?
Post-Murder Activity Documentation
Pre-Murder Warning Signs and Strange Occurrences
Suspect Investigation Files and Modern Forensic Review
Theories & Analysis
5 theories1
Family Member Theory
Source: German Criminal Investigation Archives2
Robbery Gone Wrong
Source: Bavarian Police Reports 19223
Incestuous Relationship Cover-up
Source: Local Witness Testimony4
Occult Ritual Theory
Source: Criminology Studies5
Unknown Drifter Theory
Source: Post-War Criminal RecordsEyewitness Accounts
3 reportsL
Lorenz Schlittenbauer
M
Maria Baumgartner Sr.
J
Jakob Sigl
Investigation Verdict
The Hinterkaifeck murders remain one of Europe's most perplexing unsolved cases. While the physical evidence is substantial and the timeline established, the killer's identity remains unknown. The most disturbing aspect - that someone lived in the house for days after the massacre - suggests either extreme psychological disturbance or intimate familiarity with the property. Multiple credible suspects emerged over decades, but none could be definitively linked to the crime. The case demonstrates how even with preserved evidence and extensive investigation, some mysteries resist solution.
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