Murder • Unsolved • 1922 • Germany
March 31st, 1922. A small farmstead called Hinterkaifeck sits 43 miles north of Munich, completely isolated, surrounded by dense forest. The nearest village is half a mile away. Nobody can see the farm from the road.
Days before the murders, farmer Andreas Gruber told neighbors something chilling. He had found footprints in the snow leading from the edge of the forest to the farm. They did not lead back. Someone had walked out of the woods and into his property, and as far as the snow could tell, they never left.
He also found a newspaper nobody in the family had purchased. He heard footsteps in the attic. The key to the house had gone missing. Someone was already inside the farm. Living there. Hiding. For days before the murders happened.
Six victims. Andreas Gruber, his wife Cäzilia, their widowed daughter Viktoria, Viktoria's children — seven-year-old Cäzilia and two-year-old Josef — and the new maid, Maria Baumgartner, who had arrived just hours before.
Each victim was lured to the barn one at a time, likely by a noise or call for help. Andreas first. Then his wife came looking for him. Then Viktoria. Then little Cäzilia. Each struck down with a mattock — a heavy farm tool similar to a pickaxe.
Then the killer went into the house. Two-year-old Josef was killed in his crib. Maria was killed in her bedroom. She had been on the job for just hours.
What happened next has haunted criminologists for over a century. The killer did not leave. They stayed at the farm for days. They fed the livestock. They ate food from the kitchen. Neighbors saw smoke coming from the chimney over the weekend.
When the bodies were discovered on April 4th, the four barn victims were stacked on top of each other, covered in hay. Little Cäzilia had torn out clumps of her own hair — she had survived the initial attack and was conscious for hours in the dark, lying next to the bodies of her family.
Over a hundred suspects were interviewed. The victims' heads were removed and sent to Munich for analysis by clairvoyants. The skulls were lost during World War II and never recovered. The farm itself was demolished.
Court records from 1915 revealed Andreas Gruber had been convicted of incest with his daughter Viktoria. Two-year-old Josef was believed to be the product of that relationship. One theory points to neighbor Lorenz Schlittenbauer, who had been romantically involved with Viktoria. He was the first to enter the farm during the search, going in alone before calling others.
In 2007, police academy students reviewed the case with modern techniques and concluded Schlittenbauer was the most likely suspect. By then, he had been dead for decades.
The case was officially closed as unsolved. The image of someone living in that attic for days, watching through floorboards, hearing a family eat dinner and children play — then methodically killing every one of them and staying to feed the animals — remains one of the most deeply unsettling scenarios in criminal history.
The footprints that led to the farm but never away remain one of the most chilling details in the history of unsolved crime.