Authorities have apprehended a suspect in the assassination of Charlie Kirk, the conservative media figure who was killed while participating in a public event at Utah Valley University on Wednesday. The alleged assassin is Tyler Robinson, a 22-year-old resident of Utah.

According to news reports, Robinson's family contacted law enforcement after recognizing the photo circulated by the FBI. Robinson then confessed to his father, a Utah sheriff, who detained Robinson until national law enforcement could arrive to arrest him. Interviews with Robinson's family and roommate have yielded additional confirmation that he is the shooter: He had recently told people that he thought Kirk was "hateful."

Given that Kirk was a high-profile conservative commentator, activist, and leader, many people have assumed that the killer's motive would eventually be revealed as anti-Republican animus—though it should be noted that similar assassinations have not always involved discernible left-right politics. For instance, the shooting of former Rep. Gabby Giffords (D–Ariz.) in 2011 was initially assumed to be politically motivated, and Republican campaign messaging—including specifically, from a political action committee that was connected to former Alaska Gov. Sarah Palin—received significant blame. It eventually became clear that the shooter, Jared Loughner, was psychotic, did not have a clear agenda, and had never seen the campaign materials in question. Thomas Matthew Crooks, who attempted to assassinate Donald Trump in Butler, Pennsylvania, in July 2024, does not fit neatly into a political box in terms of his ideology.

All that said, it's certainly possible that a more straightforward political motivation will emerge in this case. Speaking at a press conference Friday morning, Utah Gov. Spencer Cox confirmed that Robinson disliked Kirk's politics, and read off the messages inscribed into the shell casings of the gun used to assassinate him.

Utah Governor Spencer Cox says that suspected Charlie Kirk assassin Tyler Robinson hated Kirk because of his political views pic.twitter.com/l8VTVB4QSw

— Ryan Saavedra (@RealSaavedra) September 12, 2025

The inscribed phrases included: "Hey fascist! Catch!" and "Oh bella ciao, bella ciao, bella ciao, ciao, ciao," an antifascist song. These are messages associated with antifa, an informal leftist movement whose participants often endorse violence against their perceived enemies on the right. The shell casings also included the messages: "If you can read this you are gay lmao" and "notices bulges," which are best described as catchphrases—the internet calls them "copypasta"—associated with online chat forums like Reddit, 4chan, and Tumblr. Use of such phrases suggests that the alleged killer was very, very online.