Charlie Kirk, a conservative political activist and influencer, was shot and killed yesterday.

He was speaking at an event at Utah Valley University.

Charlie Kirk was doing what he was famous for doing for more than 10 years now.

That's my colleague, Aaron Zittner, who covers national

politics. He was on a college campus, directly engaging college students, talking to them,

and using his signature move of saying he would debate all comers. Get comfortable, bring the best

lives that Utah has to offer.

Prove me wrong was his slogan, and that's what you saw on the tent he was sitting under

at the time he was killed. Prove me wrong, a challenge to engage people in conversation with

the confidence he had that he could persuade them to the conservative point of view.

Kirk was on the first stop of what was to be a fall college speaking tour called the American

comeback tour. He was shot on stage around midday. The shooter fired one shot and is still

at large. Kirk is among many victims of political violence in the U.S. in recent years.

We're all just pausing once again.

Americans have grappled with a large series of political violence, and that's a real problem.

Everyone in public life is living under this cloud

of uncertainty and the threat of violence now.

Welcome to The Journal, our show about money, business, and power.

I'm Jessica Mendoza.

It's Thursday, September 11th.

Coming up on the show,

the murder of Charlie Kirk

...