A federal ballistics report in the high-profile murder case of conservative activist Charlie Kirk has been unsealed by a Utah judge, revealing new details about the forensic evidence against accused gunman Tyler Robinson. The report from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) states that examiners could not conclusively match a damaged bullet fragment recovered during the investigation to the rifle prosecutors allege was used in the killing. However, the same report confirmed that a spent cartridge casing found at the scene was indeed fired from the suspected murder weapon, providing prosecutors with a significant piece of forensic evidence linking the gun to the crime.
"It is not a win for the defense." — Jason Pack, Retired FBI Supervisory Agent.
The newly public document details that investigators examined a deformed section of bullet jacket material along with four lead fragments. The report clarified that an "inconclusive" result does not signify that the bullet originated from a different weapon. Instead, it indicates that there were insufficient identifiable markings left on the damaged projectile to enable a definitive determination. Law enforcement sources, who had previously commented on the investigation, suggested that the projectile likely struck bone and fragmented upon impact, which often complicates a clear ballistic comparison. Experts in forensic science frequently note that such findings are common in homicide investigations, particularly those involving high-velocity rifle rounds.
Retired FBI supervisory agent Jason Pack weighed in on the finding, stating that it should not be perceived as a major setback for the prosecution. "It is not a win for the defense," Pack asserted, explaining that the inconclusive result pertains exclusively to the damaged bullet fragment and not to the spent shell casing or the rifle itself, both of which remain crucial pieces of evidence.
The ballistics report became publicly accessible after being attached to a defense motion that was initially filed under seal in January. Robinson’s legal team had sought to halt further testing of the evidence until their own expert could inspect and photograph it. Judge Tony Graf, overseeing the proceedings, ruled that there was no valid reason to maintain the filing's secrecy, concluding that it contained no private or inflammatory material that warranted sealing.
Prosecutors allege that Tyler Robinson assassinated Charlie Kirk during a Turning Point USA event held at Utah Valley University in September 2025. According to authorities, Robinson climbed onto a rooftop overlooking the event, assumed a prone sniper position, and fired a single shot across a courtyard into a crowd estimated at approximately 3,000 people. Kirk was struck in the neck and succumbed to his wound later, as reported by Trending Politics.
Investigators further claim that they subsequently recovered the alleged murder weapon, a rifle, wrapped in a blanket in nearby woods. Prosecutors contend that DNA evidence consistent with Robinson’s genetic profile was discovered on the weapon, a towel found with it, and several live rounds inside the rifle. Additional evidence reportedly includes text messages attributed to Robinson, in which he discussed retrieving the rifle following the shooting. "Shouldn’t be long until I can come home, but I gotta grab my rifle still," he allegedly wrote hours after Kirk's death.
Robinson has entered a plea of not guilty to the charges against him. He is expected to appear in court again for a hearing concerning future media access to the judicial proceedings. If convicted of aggravated murder, prosecutors have indicated they may pursue the death penalty. The unsealed ballistics report offers a clearer glimpse into the array of evidence that is anticipated to be central to the upcoming trial, where forensic testimony, digital communications, and DNA findings are expected to play pivotal roles in presenting the case to a jury. The bullet fragments recovered during Charlie Kirk's autopsy were confirmed to be .30 caliber, according to a ballistics report referenced in a tweet by Andrew Kolvet.
