(NewsNation) — Authorities have released photos of a person of interest in the fatal shooting of conservative political activist Charlie Kirk, who is still at large.

Here's what we know:

Activist, media personality and Turning Point USA co-founder Charlie Kirk was fatally shot while speaking at an event at Utah Valley University. No other people were harmed and it appears only one shot was fired. Kirk was taken to a hospital by his security team and later pronounced dead.

Authorities initially said a suspect was in custody, then later said that person had been released. Another person was taken into custody later that night and released after questioning. Officials say neither of those individuals were involved and have asked the public not to harass them.

As of Thursday, authorities s

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