The case against Tyler Robinson, accused of killing TPUSA founder Charlie Kirk at Utah Valley University in September 2025, has become more disturbing. New forensic details about the bullet used in the shooting are out now.
According to the newly unsealed documents, the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) examined bullet fragments recovered during the autopsy. One bullet jacket fragment matched a '.30-caliber class deformed/damaged bullet jacket fragment,' according to Daily Mail.
This matches the caliber of a Mauser 98 30-06 rifle that was found near the scene and is believed by prosecutors to be the weapon used in the shooting. Robinson had received this rifle as a gift from his grandfather.
The report also says the rifle was tested and found to be working. A cartridge case recovered at the scene had a 'Remington headstamp' and was confirmed to have been fired from the same rifle.
However, the damaged bullet fragment could not be directly linked to the rifle. The examiner said it could not be 'conclusively linked or excluded' because it was too damaged.
Even so, investigators say the evidence still supports the case as the bullet type and cartridge match the rifle.
The defense has focused on the fact that the bullet cannot be directly tied to the gun. They are also trying to stop further testing, saying it could damage the evidence. However, prosecutors want more testing to gather additional details.
Newly unsealed documents that were released on April 10 also include a handwritten note and messages from Robinson that describe his actions and mindset.
Robinson is due back in court on April 17 and his preliminary hearing is set for May 17.
