Gein's story was so out of the ordinary in a time that was so unaware of how brutal humanity can be. His car was actually auctioned after his capture and was used as a carnival sideshow act. People would pay money to see the famous "Ed Gein goul car." His crimes were joked about as well. This was categorized as "Gein Humor."
Ex: “What did Ed Gein say to the sheriff that arrested him?”... “Have a heart.”