The FBI has released the first photos of the suspect in the Kirk case, according to the AP. Until now, investigators have refused to release images, saying they could hinder the operation to catch the killer.

Investigators are also asking anyone with information, photos or footage related to the incident to contact the Police.

Earlier, American investigators found a gun and several footprints that appear to belong to the shooter who shot Charlie Kirk. They also reconstructed the killer's path using video cameras on campus.

Charlie Kirk, 31, a radio commentator and influential ally of Donald Trump, was shot on Wednesday during an event on the University of Utah campus.