My ex stepfather is definitely a sociopath. And my uncle.
My stepfather is an incredibly intelligent, charismatic man. But his eyes give it away. Me and my mum could tell when he had stopped playing at being normal and gone into his own self just by looking at his eyes. They haunt me and I haven't seen him for knocking on 20 years.
He was very well respected in the mental health service. And used that knowledge at a later date to fake a breakdown to the point of being committed. But not enough to be detained for longer than the couple of months it took to completely break my mother financially and make her think that she would be better off staying with him for our sakes.
I see his traits in some of his dcs. One has terrible rages. And once they have had just a little bit of drink or drugs they are incapable of censoring themselves. Another has a lack of social skills. They have learnt as they have gotten older but worryingly I see in their partner the exact same personallity as my sf.
Another is incredibly selfish. Most of the time they hide it really well but due to a change in their circumstances their true colours are coming out.
And even in their children I see it. 1 nephew has harmed animals a couple of times. Another is just in the process of being referred to CAMHs for his issues.
My cousin (whose father was a sociopath) is diagnosed as a paranoid schizophrenic. We are very similar in age and grew up together. He has very little pain perception. No empathy. I don't think he has schizophrenia. I think it is faked to allow him to live in society and have certain benefits so he can do what he wants when he wants.
I asked him once if he did hear the voices he said he did. He told me that hearing voices was more 'acceptable' than the truth to his family and society. And that if the voices are someone else's you don't get held to account for your actions. But you had to know how far you could go with it.
He is terrifying. I know one day he will go too far. He has a drug problem and this makes his behaviour even more erratic.