As to the tragedy in Chapel Hill, if the victims were reversed, many of the same people who are trying to link the murders to Hicks being an atheist would be trying to link it to Deah being a Muslim. Either one should not be a presumption just because the killer is one thing and the victim(s) is(are) another. People in different groups can kill each other for other reasons than group identity.
I'm not anti-Christian. I'm anti-stupid.