Finally managed to work through all of the highlights in this thread. What a fucking ride.
Something to point out: contrary to popular public opinion (which is largely formed from movie and TV show representations of fictional psychopaths as these charming, clever Hannibal Lecter/Patrick Bateman types) most psychopaths are actually really, really fucking dumb. Emotional intelligence and social intelligence is just that: intelligence. These people are missing a part of their brains that normal people have. It's like a disability, but unlike most disabilities, it just causes everyone around the person who has it to suffer instead of them.
Also, while not all narcissists are psychopaths, all psychopaths are narcissists. They think incredibly highly of themselves and see everyone else around them as dumb NPCs, which often makes them sloppy and careless due to them being a walking example of the Dunning-Krueger effect. They all think they're Light Yagami, but they're usually more like Dennis Reynolds or the book version of Cersei Lannister. Just pathetic fucking losers crowing to their circles of cronies who are even dumber than they are about what evil powerful masterminds they are as they torture animals and children and helpless retards and leave a trail of evidence behind them a mile wide.
What a dumb bitch.