"Prove me wrong."

For years, that tagline of Charlie Kirk and his group, Turning Point USA, enraged many on the left. In "an age of rage," nothing is more triggering for the perpetually angry than an invitation to debate issues.

Indeed, someone has now killed him for it.

What is most chilling about the assassination is that it was not in the slightest degree surprising. This follows two attempted assassinations of President Trump and the killing of a pair of Minnesota politicians.

I heard of the assassination in Prague as I prepared to speak about the age of rage and the growing attacks on free speech. I was profoundly saddened by the news. I knew Charlie and respected his effort to challenge the orthodoxy on college campuses. We all have received regular death threats (and Charlie more than most), but there is still a hope that even the most deranged will leave these threats at the ideation rather than the action stage.

This killer left Charlie's wife, Erika, and her two young children as the latest victims of senseless violence against someone who refused to be silenced.

We do not have to know much about the shooter to recognize the rage. The person who killed Charlie did not view him as a father or even as a person. That is the transformative, enabling effect of rage.

In my book, “The Indispensable Right: Free Speech in an Age of Rage,” I write about rage and the uncomfortable truth for many engaging in rage rhetoric: “What........

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