20 Terrifying Killers You’ve Never Heard Of

#13 Karl Denke

Photo: YouTube

“The Forgotten Cannibal” was a Prussian serial killer and cannibal who killed dozens of homeless people from 1903-1924.

Denke was known as “an upstanding member of his community” before he was found guilty of turning his murder victims into jars of pickled “pork” and “leather” goods (suspenders, belts, shoelaces).