...Nice way to be compassionate, especially since your daughter was so grateful to just be alive. But you took that from her - so you weren't thinking about her, you were thinking about your own self.
Also, the title's misleading. He's not some crazy Christian who killed his family to send them to heaven - his reasons were his daughter was constantly in pain and he didn't want her mother or sister to be impacted by the fallout of said murder. He only said that "they are pain free and in heaven" - so while he believes they are in heaven, he didn't just kill them to send them there. Still demented, just not religiously demented.