He sold human flesh as pickled pork. For 21 years, nobody noticed. Karl Denke was a German serial killer and cannibal who killed and cannibalized dozens of homeless vagrants and travellers from 1903 to 1924. He became known as the Cannibal of Münsterberg and the Forgotten Cannibal. Denke volunteered as a cross-bearer and organist at the local Lutheran church and was well-liked in his community, affectionately referred to as "Papa" by those around him. Despite living a lower middle-class lifestyle, he commonly helped beggars and travellers, offering them a place to stay and odd jobs if they were in need. Known locally as the affable "Papa Denke," he lured victims to his home with offers of shelter or small jobs, then killed them using a pickaxe or by strangulation before processing their bodies for meat, which he preserved in salt and sold at local markets as pork or veal. He also frequently travelled to Breslau, where he was licensed by the Butchers Guild to sell pork in the big city markets, all of it boneless, pickled and in jars, specifically known as "skinless pickled pork." What authorities found in his apartment was essentially a makeshift meat processing shop full of human remains, including hundreds of bones, 240 human teeth, stretched and dehydrated human skin, tubs of fat, jars of meat pickling in brine, and a closet full of blood-stained clothing, as well as equipment for making soap. In a notebook, Denke meticulously documented his murders, with each entry consisting of the date, name, age, and "slaughter weight." There were 30 victims listed, including 26 men and four women. He was placed in a holding cell where he hanged himself just hours later before any interrogation could take place. His true motives died with him. The revelations of Denke's crimes sent shockwaves through Lower Silesia, where people were subsequently afraid to eat meat, resulting in the closure of several local meat canning and processing plants.