We have a young adult in the greater family unit and when she was a baby, her grand stepmother (from mixed culture gene pool) said that baby had been born with evil in her, and that ''you can see it in her eyes''.
I thought it was the GSM being her usual mean self, but down the track, I had a run-in with the toddler child and I have never experienced a child (one who had been raised with good parenting and life rules) be so completely blank and shut down when I asked her what she was doing near a spot in our house where she should never have been.
She wasn't asked rudely or the like, just wouldn't answer nor go downstairs to where the majority of the family were and turned her back on me until her mother turned up.
We no longer live close by, and for that I'm very pleased as I started not to ''take to her'' after a while. One of our adult DC's swears she tried to drown them when they were about 8 in the backyard pool!
As she has got older, she has attempted suicide several times and is under long-term treatment by (one of many) specialists. She has had some really exploratory stuff done to her (at her request) but she still has this other ''thing'' going on. She can be very manipulative to her parents and generally speaking, is ok on medication but then will have some sort of personality/thinking spike and off she will go,
I cannot put into words exactly what it is about her, but something isn't right and the specialists, and she has seen a few, haven't been able to offer up any sort of solution at all.
Her parents are really decent people too, it's really worn them down with Mum not being too well. Limited biological family left on either side.