My first thought was Hitler but a womanizing playboy might make them queasier about their theory. Closer to home and all.
Vandersloot is closer to our time, we’ve seen him, heard him. His crimes don’t approach Adolph’s, but his personality is more contemporary and he just oozes a sense of cold, uncaring, totally devoid of empathy, like a psychopath, The writing (excerpts) of these profs is utterly without any human feeling. Chilling.