I am not a frequent user of this site, but friend told me about some topics she had seen recently and I thought I'd open this up to share my experience on the matter should anyone be interested.
I raised a child who later got diagnosed with ASPD, which people generally refer to as psychopathy or sociopathy.
I'm not an expert on the subject matter or condition, but can only share my experience in our case, which might help someone or maybe just remove or confirm some stereotypes.