« Last post by Cain on Today at 03:33:01 pm »
He was anti-religion in general, going from his web posts. It appears he was asking people what faith they were, and then shooting them. Fox has spun this to make it sound like he was targeting Christians.
From what I heard about the incident itself, he asked two people what religion they were, and when they answered Christian he shot them both.
So it's hard to say, without more to go on. Being antireligion in the USA would, in most circumstances, also mean being anti-Christian.