The Brief

PHOENIX - The shooting death of conservative activist Charlie Kirk on the Utah Valley University campus has exposed possible security gaps for political events.

The backstory:

The shooting happened during an event that was part of Kirk's "American Comeback Tour." Graphic video posted to social media shows Kirk on stage, sitting in a chair and talking into a microphone when a single gunshot was heard. People started screaming and running away following the shooting.

Officials say the shooter fired the lone gunshot from the top of a building that is located less than 200 yards away from where Kirk was sitting with his own security around him.

"All I could see is him just going limp. Like, I saw the life leave him in that instant, and I knew he was gone," said Alicia Smit

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