The FBI has released photos of a person of interest in the shooting death of Charlie Kirk.

The FBI's Salt Lake City office shared the photos on social media Thursday.

Kirk, the conservative activist and founder of Turning Point USA, was shot and killed at Utah Valley University Wednesday afternoon during the first stop of his American Comeback Tour.

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What we know:

A manhunt for the suspect continues today. Two people were detained Wednesday, but neither was determined to be connected to the shooting and both were released, Utah public safety officials said.

At a news briefing Thursday morning, authorities said the suspect appears to be college-aged and "blended in" with students on campus. 911 calls released Thursday by the Utah County Department of Public Safety

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