Our latest episode covers the 1922 unsolved murders of Andreas Gruber (63) his wife Cäzilia Gruber (72), their widowed daughter Viktoria Gabriel (35), Viktoria's children, Cäzilia (7) and Josef (2); and their maid, Maria Baumgartner (44), which took place of their Hinterkaifeck Farm in Germany.
https://medium.com/the-mystery-box/the-unsolved-murders-at-the-hinterkaifeck-farm-c1025e584c81
https://www.ranker.com/list/hinterkaifeck-farm/cat-mcauliffe
https://en.wikipedia.org/wiki/Hinterkaifeck_murders
https://www.grunge.com/340781/the-creepy-truth-about-the-hinterkaifeck-murders/
https://filmdaily.co/obsessions/true-crime/hinterkaifeck-farm-murders/
https://www.mentalfloss.com/article/502044/chilling-story-hinterkaifeck-killings-germanys-most-famous-unsolved-crime
https://www.audacy.com/podcasts/the-generation-why-podcast-23054/hinterkaifeck-152-15554591
https://medium.com/the-mystery-box/the-hinterkaifeck-murders-germanys-oldest-unsolved-massacre-17dea740e031