Have you ever encountered a sociopath?

[Marthe48]

44. I think the neighbor kid

Is a sociopath, or worse. While he might have inherited mental health issues, he has never obeyed rules or worse, made to obey them.
His grandmother is his guardian since he was 2. She let him leave h.s. when he was 16. I think he is living down the street with people who work on cars, but she still supports him. Her husband died 7 years ago, and left her in good shape. When the punk left school, she took a large loan on her paid off house to buy him a full size tractor. I heard that from one of my friends who is still friends with her. The punk can't seem to get a driver's license, so he operates things like tractors and dirt bikes. I used to be friends with the family but that ended about 3 years ago.
There is a lot of activity that I think he caused or is into but I probably can't prove.
I called the state patrol and sheriff on him several times because he was breaking the law and harassing me. I stood and took pictures of him while he was at it and he laughed. The l.eo. come when I call, but both entities tell me to stay inside and he'll go away. I don't really handle it. I know what I'd like to do, but I won't.