I have debated and debated to myself posting details on this but I have someone "close" to my family who is a sociopath. I cannot stress enough to those of you that have been lucky enough not to come across one of these people that no matter how much you read, I don't believe that you can ever really "get it" as far as these people go without experiencing it for yourself, but I do recommend as much study on them as you can muster.
The person that we know is thought, by everyone on the "outside" to be a wonderful man who loves his family and would give you the shirt off his back when in reality he is a cold and calculating sociopath. Every nice thing that he does has a motive that benefits him behind it. I truly believed that he loved my son dearly, always falling all over him, holding him when he cried, acting like a doting grandparent, even after being warned by his own stepson that it was all an act. I couldn't imagine anyone acting that well...till I caught him saying nasty hateful things to my 9 MONTH OLD BABY when he thought I wasn't in the next room and could hear him. Once this happened, I let him know that I heard him and I was offended and super p!ssed and from that point on the act was over with me and he has always acted towards me, when we are alone, like KC does on the phone to her mother. HE could care less about hiding who he really is around me now and he is always ugly and nasty and has a smirk on his face, and my son is not allowed with him alone anymore because the man that I thought loved my son now I fear would snap his neck in a heartbeat if given the chance. I have seen him pretend to love his own daughter dearly in front of others, and then do things to her when he thought people weren't looking that caused me to anonymously call CPS. Sociopaths have a gift for fooling people into believing that they are loving caring people. They know what type of person you want them to be and they become that person and stay that person whenever they are around you. I knew this man for 10 years before I found out who he really was.