Investigators have uncovered what appear to be messages on both the ammunition and the firearm recovered at the scene of Charlie Kirk’s assassination, multiple sources told Fox News.

Authorities found the rifle believed to be used to murder Kirk at his Utah Valley University event on Wednesday. They recovered the rifle in the woods near the scene of the shooting, along a path they believe the shooter used to escape.

FBI Special Agent in Charge Robert Bohls said authorities recovered “good video footage” of the shooter on UVU’s campus. He said the shooter appeared to be “of college age,” but declined to offer further details.

Charlie Kirk assassination witnesses describe minimal security, horrifying shooting

As law enforcement officials continue searching for the person behind the assassination of 31-year-old Turning Point USA founder Charlie Kirk, witnesses describe a scene with minimal security at the event on the campus of Utah Valley University (UVU) when the shooting took place.

“There were not a lot of cops there. I’ve seen more cops at UVU for sporting events than right now,” a witness identified as Sam, who said he was a local high school student, told KUTV. Sam also wondered why there weren’t stricter security measures, such as bag checks before the event.

“They had cops above on the walkways who were stopping — what I assume — people from throwing stuff down towards him. So, I wonder why there wasn’t any level of security taken to stop people around, like, in front of him or anything like that,” he added.

Kirk, who famously went to college campuses across the country to discuss politics with and debate young people, was fatally shot during an event at UVU on Wednesday afternoon. While an individual initially believed to be the shooter was taken into custody, authorities later determined that the person was not connected to the shooting.

Cooper Brown, who was managing the microphone at Kirk’s event, spoke with “Fox & Friends First” on Thursday morning about what he saw.

“Unfortunately, very, very soon after the question and answering started, I heard a very loud pop and I looked to my right and see Charlie Kirk, his body shake and blood begin to pour down from the side of his neck,” Brown said.

Source: Foxnews.com