Who do You Think You Are?
When I started doing genealogy, I resolved never to take anything personally. It happened many year/decades/centuries before I was born. As a result, whenever I find something bad (murder/bigamy/et al) I don't take it personally.
Just watched his episode. He had been told by his family that his 4x Great Grandfather was murdered. It was pretty obvious from the articles Billy read that he was killed while in the commission of a crime. He got very upset about that. He found one article that questioned the shooting and he accepted that as fact.