Ed Gein was obsessively devoted to his mother, a religious fanatic. After her death, Gein began robbing graves––keeping body parts as trophies, practicing necrophilia, and experimenting with human taxidermy. He then turned to murder, killing at least two women in 1957. Gein inspired film characters Norman Bates, Hannibal Lecter, and Leatherface in Texas Chainsaw Massacre.