Key Takeaways
- Six individuals were brutally murdered at the Hinterkaifeck farm in Bavaria in March 1922.
- Unexplained events, including strange footprints and noises, preceded the killings at the farm.
- Evidence suggested the killer remained at the isolated farm for several days after the murders.
- Two main suspects, a neighbor and the daughter's ex-husband, were investigated, but the case remains officially unsolved.
Deep Dive
- The murder occurred at the Hinterkaifeck farm in Bavaria, involving the Gruber family: Andreas, his wife Kazilia, their daughter Victoria, and two grandchildren, including two-year-old Joseph.
- The Grubers were known to be disliked in their isolated community, with patriarch Andreas described as unfriendly and abusive.
- Rumors suggested an incestuous relationship between Andreas and his daughter Victoria, who was widowed at 35.
- The former farm maid quit, claiming the house was haunted by unexplained noises and footsteps.
- Andreas Gruber discovered a single set of footprints in the snow leading to the house, but no tracks leading away.
- The farmer reported an attempted break-in at his tool shed and found a mysterious newspaper on the porch in late March 1922.
- Andreas Gruber also began hearing unexplained sounds coming from the attic shortly before the murders.
- On April 4, 1922, neighbors discovered six victims, including the Gruber family and their new maid Maria Baumgartner, bludgeoned to death.
- Autopsies, performed by Dr. Johan Armueller, confirmed a mattock was the murder weapon, and evidence suggested Kazilia Gruber survived for hours post-attack.
- Farm activity observed through the weekend prior to the discovery indicated the killings occurred after March 31, 1922.
- Evidence like a slept-in bed and tended livestock suggested the killer remained at the farm for multiple days after the killings.
- Lorenz Schlittenbauer, a neighbor and Victoria's suitor, was a key suspect due to potential alimony avoidance for their son, Joseph.
- His actions at the crime scene were deemed suspicious, as he disturbed evidence and handled bodies without distress.
- Schlittenbauer claimed an alibi of sleeping in his barn, approximately 350 meters from the murder scene, due to 'weirdness,' despite having asthma.
- He reportedly discussed the murders publicly years later, at times speaking as if he were the killer, though the authenticity of these claims is debated.
- Carl Gabriel, Victoria's ex-husband, was another suspect despite officially dying in World War I, as his body was never returned, leading to speculation he might have survived.
- A World War II confession by a German-speaking Russian soldier allegedly identified as Gabriel was noted, though police had previously confirmed Gabriel's WWI death.
- Over 100 suspects were interviewed in the Hinterkaifeck case over time, with Schlittenbauer being a primary focus.
- A 2007 reinvestigation by students from the Furstenfeldbruck Police Academy concluded Schlittenbauer was likely the killer, but the case remains officially unsolved.