Movie murderers Norman Bates, Leatherface, and Buffalo Bill were all based on one serial killer: Ed Gein. Gein is notorious for murdering his victims and keeping the cut-up pieces of their bodies around his farmhouse. When investigators raided his home, they found, among other things, “four noses, nine masks of human skin, a lampshade made from the skin from a human face, and a belt made from human female nipples.”