I have yet to see a direct quote from a survivor to that effect.
Here's another survivor's (Tracy Heu) direct quote that contradicts that the shooter treated Christians differently, "One by one, the gunman called for individuals to stand up -- performing a grim roll call to find out their religion. "He asked them, 'Are you Christian? Do you believe in God?' " Heu said. "And then they said yes and he said, 'Good, I'll send you to God. You'll be visiting God pretty soon,' and he shoots them." Another time Heu said the shooter asked if someone was Catholic "and they said 'yeah' and he still shot them." Heu remained face-down in a pool of blood -- a morbid cover that ultimately saved her life. "I didn't want him to notice that I was still alive, so that he wouldn't point me up," she said. "He was telling (people) that he knows they are still alive and for them to get up." Each time someone stood, Heu said, he or she was shot regardless of the answer. "I don't think he was actually targeting a specific religion," she said. "He just wanted to do it for fun, 'cause he still shot every single one. He started shooting people before even asking."
That's 3 direct quotes from people that were in the room I've cited that contradicts the notion he either targeted Christians or treated Christians differently.
How does it contradict anything? Catholic is still christian. If you're wearing, say a cross necklace, the likelihood you're christian is high.
Once again, why would he specifically ask about christianity if he wasn't targeting christians. He could've shot people who faked being dead because they faked, you don't know, I don't know, but you're hell bent that he wasn't based off of the same inconclusive data. If I walked into a college asking people if they were muslim, and "sent them to allah" but still shot the other people in some way you wouldn't think I was targeting muslims? come on now.