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Tonight we're following a number of developing stories. The U.S. government announces a crackdown

on a new Russian election influence campaign,

why the Attorney General calls the misinformation a bigger threat than ever before.

It's coming faster and faster. It's now AI fuel.

Plus, the breaking news amassed shooting at a high school as a new school year gets underway.

I heard like 12, 15 different gun shots. It was like, boom, boom. I was crying. I was scared I was going to die. A 14-year-old tonight is in custody. To be charged with the murders of two classmates and two teachers. The new details just coming in. The CBS evening news starts now.

Good evening. I'm Nora O'Donnell, and thank you for being with us. We're going to begin tonight with a distinctly American tragedy, a mass shooting at a school, this time

at a high school in Georgia. It started around 1023 this morning when police say a teenage gunman opened fire at

Appalachie High School. That's about 45 miles northeast of Atlanta. Four people are dead,

nine others wounded. Students and teachers scrambled to take cover as witnesses describe gunshots

and blood. One teen texted, I love you, to his parents. And families rushed

towards the school in search of their kids. Nearby streets littered with abandoned cars as mothers

and fathers described running miles to reach their children. President Biden said, quote,

we cannot continue to accept this as normal. CBS's Mark Strassman is on the scene.

Good evening, Mark.

Good evening, Nora.

When Appalachie High went into lockdown this morning,

at first, many students thought it was a drill.

Then they heard gunshots.

Winder, George's moment of dread,

...