In the hours following yesterday's violence, progressive talking heads offered us every possible reason for the attacks. First it was workplace violence, then it was the work of lone wolf gun nuts, radical Christians, right-wing militias, and on and on and on. The media was positively desperate not to suggest anything that could even hint at Islam, because that didn't fit the gun control narrative they were trying so hard to justify.
Now, because we wouldn't want to jump to conclusions, they're still waiting for the totally-impossible-to-discern motive to be revealed. No one can say what would make a couple of peaceful Muslims, one of whom had recently traveled to Saudi Arabia, do something so horrible while wearing Go-Pro cameras. We can, however, say that political correctness helped it happen.