Charlie Kirk appears at Utah Valley University in Orem, Utah, on Sept. 10, 2025, shortly before the shooting. (Tess Crowley/The Deseret News via AP)
According to the bulletin, circulated on X by political commentator Steven Crowder, federal officials recovered a .30-06 caliber Mauser rifle in the woods that contained "engravings," including messaging expressing anti-fascist ideology and other messages.
Fox News Digital confirmed the veracity of the ATF bulletin through talking to multiple sources, but the sources stressed on Thursday that the information was preliminary.
DEMS, GOP LAWMAKERS JOIN FORCES TO CONDEMN POLITICAL VIOLENCE AFTER CHARLIE KIRK SHOT
Charlie Kirk speaks at Utah Valley University in Orem, Utah, on Sept. 10, 2025, during his ‘American Comeback Tour,’ shortly before he was killed (Trent Nelson/The Salt Lake Tribune/Getty Images)
"This is certainly about the tragic death, assassination, political assassination of Charlie Kirk, but it is also much bigger than an attack on an individual," Cox said. "It is an attack on all of us. It is an attack on the American experiment."
FBI Director Kash Patel laid out the timeline of the investigation Friday, saying it took the FBI and Utah law enforcement 33 hours to make an arrest. Patel said authorities made "historic progress" in such a short duration of time.
CLICK HERE TO GET THE FOX NEWS APP
The FBI's Salt Lake City Field Office released an image Thursday of a man they had said was a "person of interest" in Kirk's death and asked the public for help identifying him. The bureau also announced it was offering a $100,000 reward for information leading to his capture. Cox said a tip from a family friend of Robinson's led to his arrest.
Ashley Oliver is a reporter for Fox News Digital and FOX Business, covering the Justice Department and legal affairs. Email story tips to ashley.oliver@fox.com.
https://www.foxnews.com/politics/engravings-shooters-ammo-exposes-charlie-kirk-assassination-motive