Hinterkaifeck, a small farmstead situated between the Bavarian towns of Ingolstadt and Schrobenhausen (approximately 70 km north of Munich), was the scene of one of the most puzzling crimes in German history. On the evening of March 31, 1922, the six inhabitants of the farm were killed with a mattock. The murder is still unsolved. Andreas Gruber, his wife, their widowed daughter, her two children and their maid were all killed that evening. The youngest child was rumored to be the son of Andreas and his daughter, who allegedly had an incestuous relationship.
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