ATLANTA, GA—Churchgoer Jack Wilson shot and killed a mass shooter at West Freeway Church of Christ, preventing what could have been a much worse shooting. But CNN reported on the event with the headline and caption "Trump voter shot a mentally ill man in a Texas church," causing some to question whether CNN might be a biased source of news. "Once again we see that Trump voters are hopelessly wicked," said one somber anchor as footage came in of a shooting in a Texas church. "There is nothing they won't do to attack the oppressed, mentally ill community. All this...