Two people detained and released after the killing of conservative activist Charlie Kirk have faced threats and scrutiny even after police said they were not suspects.

Police officers and FBI agents investigate as authorities search for the man who killed political activist Charlie Kirk.

A 38-year-old man in a lab coat was arrested on Utah Valley University's campus Thursday morning after police say he trespassed into the crime scene where Charlie Kirk was fatally shot the day before.

Mr. Kirk, 31, the founder of a right-wing youth movement, was shot while speaking at Utah Valley University on Wednesday.

A Prince George's County officer is facing an internal investigation after allegedly making a social media post on the assassination of Charlie Kirk, the department confirmed.

Charlie Kirk was fielding questions about gun violence at an event at Utah Valley University on Wednesday when he was shot.

Authorities detained, interrogated and released an innocent person in connection with Charlie Kirk's killing. The Provo 25-year-old now is being attacked online.

The weaponry available today would allow someone with even limited firearms experience to pull off such a hit, multiple gun experts said.

Charlie Kirk, a prominent conservative activist, was fatally shot Wednesday during an event at a Utah university.

A fight broke out during a vigil held for Charlie Kirk, the political activist who was shot and killed during an event in Utah on Wednesday. Video captured the fight in front of the Idaho State Capitol in Boise, Idaho, on Sept. 10.