U.S. investigators on Thursday released images of a person of interest in the fatal shooting of the influential conservative activist Charlie Kirk and said they had found the bolt-action rifle believed to have been used in the politically charged killing.

The gunman who fatally shot the right-wing activist Charlie Kirk remained on the run Thursday as a frantic and fruitless hunt for the killer led law enforcement officers to scour through chicken coops and plead for the public’s help.

The Turning Point USA cofounder was speaking in front of a large crowd on the campus of Utah Valley University.

Charlie Kirk's body has been flown back to Arizona for his funeral after his fatal shooting at Utah Valley University earlier this week

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.

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

Gov. Spencer Cox of Utah has called for politicians to tone down their rhetoric and “disagree better.” The assassination of Charlie Kirk is testing the limits of that high-minded approach.

Charlie Kirk, founder of Turning Point USA, was fatally shot during an event at Utah Valley University as witnesses describe minimal security measures.