An analysis from the federal Bureau of Alcohol, Tobacco, Firearms and Explosive (ATF) could not conclusively connect a bullet fragment recovered during Charlie Kirk’s autopsy to the rifle found near the scene of the rightwing political activist’s killing – and the FBI is running additional tests, lawyers for Kirk’s accused murderer said in recent court filings.
In the court filings, Tyler Robinson’s defense team also asked for a delay to a preliminary hearing scheduled in May, saying they need time to review the bullet analysis as well as an enormous amount of other material that could contribute to the suspect’s defense.
The ATF’s bullet analysis report has been kept private, but attorneys have cited snippets in other public filings that say the results were inconclusive.
The defense said in its motion that it may try to use the analysis to clear Robinson of blame during the preliminary hearing while prosecutors aim to show they have enough evidence against him to proceed with a trial.



The article describes a fragment, which is beyond mere deformation. That’s unsurprising with a high-velocity rifle round and would typically be impossible to conclusively match to the weapon that fired it. It could be possible to exclude a particular weapon (wrong caliber, obviously different rifling, etc…).
They don’t seem to be denying fragmentation/massive deformation. In fact, the crux of their comment relies on that fragmentation.
The point is that, with the amount of force in applied to fragment this bullet, we do not see a similar amount of force applied to Charlie’s neck. There was no large exit wound, and the projectile did not appear to impact his spine.