[x]

Assuming the story is true, wouldn't a Muslim gunman be after all "infidels" or non-Muslims, whatever their religious belief?

It wouldn't be hard for him to tell who was a Muslim and who wasn't, and there probably wouldn't be that many Muslims in rural Oregon.

After that, how much would it matter to him who was a Christian and who wasn't?

[Dallas59]

Just some guy that maybe watched all the ISIS videos on the internets and got some ideas on how to kill.