TRUE CRIME ATLAS

Hinterkaifeck Murders

Published August 17, 2026Updated September 26, 2026
UnsolvedVisual case overview

19 documented events · 5 mapped locations · unresolved case

Hinterkaifeck Murders, through the record

Six people—Andreas and Cäzilia Gruber, their widowed daughter Viktoria Gabriel, her children Cäzilia and Josef, and newly arrived maid Maria Baumgartner—were killed at the isolated Hinterkaifeck farmstead in Bavaria on the night of...

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Six people—Andreas and Cäzilia Gruber, their widowed daughter Viktoria Gabriel, her children Cäzilia and Josef, and newly arrived maid Maria Baumgartner—were killed at the isolated Hinterkaifeck farmstead in Bavaria on the night of March 31, 1922. Four victims were found in the barn and two in the residence on April 4. Investigators concluded that severe head injuries caused the deaths; a Reuthaue, a mattock-like farm tool believed to be the weapon, was recovered during the farm’s demolition in 1923. Reports that animals were fed and the property used after the killings suggest post-crime activity, but do not establish who remained or for how long. Extensive investigations and a 2007 police-academy review did not produce charges, and the murders remain unsolved.

Official 1922 exterior of the Hinterkaifeck farmstead

Case record

Official 1922 exterior of the Hinterkaifeck farmstead

Recent developments

Latest updates

Recent reporting and official developments, labeled by source and verification status.

RetrospectivePodcastReported

Jun 3, 2026 · Buried Bones

Buried Bones gives Hinterkaifeck a two-part forensic review

Historical true-crime writer Kate Winkler Dawson and former cold-case investigator Paul Holes reconstruct the discovery and investigation across two English-language episodes, separating documented crime-scene facts from later folklore and assessing the limits of the surviving evidence.

Context

This is an expert-led media retrospective, not a new police inquiry or resolution of the murders.

Listen to podcast →
RetrospectivePodcast

Apr 26, 2026 · Der unerklärliche Podcast

German-language podcast revisits the Hinterkaifeck mystery

Der unerklärliche Podcast released a German-language retrospective on the six killings, the crime scene, and the competing explanations that have accumulated around the case.

Context

This is a media retrospective, not a new investigative development; disputed claims should be checked against archival sources.

Listen to podcast →

The scale

The case in four numbers

19
documented events
in the published chronology
163
years represented
1863 through 2025
13
people in the record
victims, witnesses, investigators, and suspects
5
mapped locations
connected to the published case file

The case sequence

Events that define the published record

This selection follows the major progression of the case from its earliest documented event through the latest material development.

See all 5 mapped locations →
  1. 01

    Jan 1, 1863

    Hinterkaifeck farmstead constructed

    The farm at Hinterkaifeck was built around 1863 in rural Upper Bavaria.

  2. 02

    Mar 1, 1922

    Unusual prelude events

    Andreas found a Munich newspaper no one nearby subscribed to; fresh tracks led from the woods to the farm; a key went missing; footsteps were heard in the attic.

  3. 03

    Apr 3, 1922

    Postman notes absence

    Postman Josef Mayer noticed the farm appeared unattended during his delivery round.

  4. 04

    Apr 8, 1922

    Funeral and burial in Waidhofen

    Thousands reportedly attended the funeral; the victims were buried in the Waidhofen cemetery.

  5. 05

    May 1, 1927

    Stranger claims responsibility in Waidhofen incident

    A stranger reportedly identified himself as the murderer to a resident before fleeing; the claim was never verified.

  6. 06

    Mar 1, 2025

    New memorial installed near the site

    After the earlier wayside cross (Marterl) was removed in 2022, a new memorial was erected near the former farmstead.

How the record develops

Three points in the documented sequence

1
From the case record

The farm at Hinterkaifeck was built around 1863 in rural Upper Bavaria.

2
From the case record

Thousands reportedly attended the funeral; the victims were buried in the Waidhofen cemetery.

3
From the case record

After the earlier wayside cross (Marterl) was removed in 2022, a new memorial was erected near the former farmstead.

Hinterkaifeck while the farm was occupied
2025
latest timeline year

New memorial installed near the site

After the earlier wayside cross (Marterl) was removed in 2022, a new memorial was erected near the former farmstead.

Explore the visual record →

Go deeper

Choose your path through the case

This overview is the map. The case tabs hold the underlying events, people, media, locations, and source material.