The Nashville Tragedy

On Monday, a 28-year-old shooter broke into Covenant school in Nashville, Tenn., and murdered three adults and three nine-year-old children. Within 14 minutes, police had arrived and shot the assailant dead. As ever, it wasn’t long before the slow trickle of information was engulfed in an avalanche of talking points. This time, they concerned not only gun control but transgenderism.

At least for some journalists and commentators, it is impossible to imagine that the perpetrator was simply a disturbed and hateful person — no, social-justice morality tales have to be...