This document discusses the profile and motivations of serial killers like Ed Gein, known as the Mad Butcher and Leather Face. Gein killed several women in Plainfield, Wisconsin between 1954-1957. He mutilated their bodies and kept their organs and skin. When authorities searched his house, they found objects made from human skin and bones. Gein suffered from mental illness and was frustrated by his mother's death, which led him to kill women and take their organs. He was eventually sentenced to death but overdosed before his execution. Motivations for serial killing discussed include fear of rejection, desire for power and perfection.