Investigators revealed that a high-powered bolt-action rifle believed to be the weapon used was found in a wooded area where Robinson allegedly fled. The FBI Laboratory will examine the firearm, along with footwear impressions, a palm print, and forearm imprints also recovered from the scene.

Governor Spencer Cox disclosed that ammunition found near the rifle carried unusual engravings tied to internet culture. Phrases referenced memes, video games, and cultural symbols. Digital culture expert Jamie Cohen explained that memes often serve as coded communication, recognizable mainly to in-groups, and may or may not indicate motive. Among the engravings were controller inputs from Helldivers 2, the phrase “Hey, fascist! Catch!” echoing the same game, the resistance anthem Bella Ciao, and a parody phrase from furry subculture.

Authorities are still working to determine whether these inscriptions hold any deeper meaning. Cohen cautioned that while memes can look nonsensical, they sometimes carry layered messages that resonate with certain online communities and extremist groups.