I wonder if his wife was in the church.
Twitter rumors saying she was in the church. Time will tell. If I find confirming link, I’ll post.
could be he was an out and out psycho- however- i too have a gut feeling that either his wife, or mother-in-law was part of that church, and he felt the church and wife, or mother-in-law, or all three, were conspiring against him- Sounds like he might have really hated Christians- just a gut feeling at this point