He could have been anything from some anti Christianity goof ball trying to get a rise out of the church to a full blown terrorist. It sounds like he was more just a weirdo out to make a scene and play some game. The churches response given the times that we live in was spot on. Minimal drama in how things were handled but at the same time you were able to get the police involved to run his info and hopefully make it known that if he comes back he’s trespassing that’s about best you could do.