Hot and homicidal. That’s the dating criteria for 20-somethings with hybristophilia, a sexual attraction to criminals — like serial killer and body snatcher, Ed Gein. It’s an outré affinity toward bad boys that’s being fueled by social media, according to blood-curdling new data. Gein, infamously nicknamed “The Butcher of Plainfield” for slaughtering and skinning women on his farm in Plainfield, Wisconsin, is the internet’s latest love interest. The mid-century murder’s sordid tale of abuse and savagery is spotlit in Ryan Murphy’s Netflix series, “Monster: The Ed Gein Story,” starring Hollywood heartthrob Charlie Hunnam as Gein. But, instead of horror and...