History: The only known photograph of German serial Killer Karl Denke after he hanged himself in his cell. When police searched his house they found human flesh in cured salt jars and a ledger detailing the murder of at least 42 people. He also claimed to sell human flesh at markets as pork. 1924. [536×600]

https://upload.wikimedia.org/wikipedia/commons/0/01/Karl_Denke.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/75lwbv/the_only_known_photograph_of_german_serial_killer/?utm_source=ifttt