All cars have wheels. Not everything with wheels is a car.

The more famous serial killers i barely remember even a bit of were described as social animals, charismatic and highly adept at manipulation.

If you averaged out every serial killer, you end up with someone that is remarkably just like me. I've learned this isn't a bit of trivia to mention during job interviews.

Yeah, but the problem is... You need to leave home to be a serial killer. Well, no wait. I mean to be a good one. I think if you kept inviting people to your house and killing them, it would be a bit of an easy trail to follow. So, being a successful serial killer is too much work.

I'll do it tomorrow. Yeah, tomorrow.

I suspect this would change a bit, if you separate serial killers from mass shooters.

Serial killers need to plan out what they are doing, to not get caught. They can often hide behind a mask of charisma.

Mass shooters fit this quite well. It's also the exact behaviour I would expect from someone trapped in an untenable situation. The pressure builds until something happens. In a few of those people, it is via anger and rage against those they feel wronged them.

1 group is likely naturally broken, to some degree. The other is broken by modern society.

Documentary serial killer:

Actual serial killer:

Oh shit, the FBI is on to me, brb gonna make sure the bodies in my backyard are well hidden

Haha... haha.... hahahahaha

That plus a brain defect that makes them think that ending a life is okay. All the other shuts-ins just play a lot of video games.