The FBI also issued new photos of a person of interest and announced a reward of up to US$100,000 (about NZ$167,000) for information leading to his identification and arrest.
US President Donald Trump vowed Kirk’s killer would receive the “appropriate” punishment.
“They’re making big progress,” he said of the manhunt.
The person of interest in the investigation into the fatal shooting of Charlie Kirk at Utah Valley University. Photo / FBI
Trump said he had been given an indication of the killer’s motivation but did not share further details.
“He’s an animal, total animal, and hopefully they’ll have him, and they’ll get him.
“What he did is disgraceful.
“Charlie Kirk was a great person, a great man, great in every way, especially with youth. And what he did, what this man did, was disgraceful. So hopefully we’ll have him, and we will deal with him very appropriately.”
– Agence France-Presse