A federal judge has made public a critical ATF ballistics report that shows investigators could not definitively match the bullet that killed conservative activist Charlie Kirk to the rifle allegedly used by Tyler Robinson, the man charged with his murder.

Ballistics Test Results Prove Inconclusive

Judge Tony Graf authorized the release of the Bureau of Alcohol, Tobacco, Firearms, and Explosives report after Robinson’s defense team referenced it in court filings. The ATF analysis revealed that the bullet jacket fragment recovered during Kirk’s autopsy could not be conclusively identified as having been fired from the Mauser 98 30-06 rifle tied to Robinson. The fragment’s condition prevented definitive matching, though its characteristics remain consistent with multiple firearm types. The ATF stated the comparison yielded neither sufficient agreement nor disagreement of individual characteristics, resulting in an inconclusive determination.

Robinson’s defense attorneys filed a motion last month requesting the court either vacate or delay the May preliminary hearing, arguing they lack complete access to evidence needed for adequate case preparation. The defense indicated they may call the ATF firearm analyst as a witness, presenting the inconclusive ballistics results as potentially exculpatory evidence that could challenge the prosecution’s case against their client.

DNA Evidence Links Defendant To Weapon

Despite the ballistics uncertainty, prosecutors maintain substantial physical evidence connecting Robinson to the alleged murder weapon. Additional forensic testing identified DNA consistent with Robinson’s genetic profile on the rifle itself, a towel found with the weapon, and three of the four cartridges loaded inside the firearm. The Mauser 98 rifle was reportedly a gift Robinson received from his grandfather, establishing prior possession of the weapon. Judge Graf determined the ATF report contained no private or inflammatory information warranting continued classification, clearing the way for public disclosure.

What Happens Next

Robinson’s next court appearance is scheduled for Friday, April 17, where arguments regarding the preliminary hearing timeline will likely be addressed. The inconclusive ballistics report represents a potential challenge for prosecutors, though the DNA evidence may prove sufficient to establish Robinson’s connection to the weapon. The case continues to draw national attention given Kirk’s prominence in conservative media and political activism. Second Amendment advocates are closely monitoring how forensic evidence standards apply in this high-profile prosecution.