Prosecutors on Tuesday charged 24-year-old Tyler Robinson with the aggravated murder of conservative commentator Charlie Kirk and revealed text messages they say show Robinson admitting to the killing.
Utah County Attorney Jeff Gray announced seven counts against Robinson — one count of aggravated murder and felony discharge of a firearm, two counts of obstruction of justice, two counts of witness tampering and one count of commission of a violent offense in the presence of a child — and said the office will seek the death penalty. "I do not take this decision lightly, and it is a decision I have made independently as county attorney based solely on the available evidence and circumstances and nature of the crime," Gray said at a news conference. He called Kirk's killing "an American tragedy" and said Kirk was murdered while exercising the free exchange of ideas.
Prosecutors said one of the texts Robinson allegedly sent to his partner after the shooting stated, "I had enough of his hatred. Some hate can't be negotiated out." Robinson was arrested after a roughly 33-hour manhunt following the Sept. 10 shooting at Utah Valley University in Orem, Utah, where Kirk was speaking to a crowd of hundreds. Authorities say Kirk was struck by a single shot fired from about 200 yards away and died after being shot in the neck.
Robinson is scheduled to make his first court appearance later Tuesday. Gray said the decision to seek capital punishment was based on the available evidence and the nature of the crime. Utah Gov. Spencer Cox, who previously said the state would pursue the death penalty if Robinson is charged and convicted of aggravated murder, said over the weekend that Robinson had not confessed and was not cooperating with investigators.
Investigators have spent the past week collecting physical evidence from the scene and reviewing Robinson's communications and background for a possible motive. Utah's Department of Public Safety Commissioner Beau Mason said authorities currently believe Robinson acted alone but are probing whether anyone else knew of his plans. Mason said investigators were examining messages and other materials recovered at the scene.
Cox told NBC News investigators believe Robinson had been influenced by "leftist ideology" in recent years and noted an interest in what he called "Reddit culture and other dark places of the internet." Authorities reported that bullet casings recovered at the scene were inscribed with quotes tied to obscure memes and online gaming culture, details that have spurred competing narratives about why the attack occurred.
Cox also said Robinson's romantic partner and roommate, who he said was transitioning from male to female, had been cooperative with investigators and "had no idea that this was happening." The governor's comments echoed public statements by officials who have sought to piece together social and digital influences that may have shaped Robinson's actions.
Kirk, 34, rose to national prominence as the founder of Turning Point USA and as a vocal conservative organizer on college campuses. He was a prominent supporter of former President Donald Trump and an influential figure among conservative youth movements, using campus events to mobilize and build his organization. Videos of the shooting spread rapidly across social media platforms, prompting condemnation and leading to employment consequences for some individuals who posted celebratory reactions online.
The killing has intensified national debate over political violence and rhetoric. In the days after the shooting, some Republican officials and conservative commentators called for a crackdown on left-wing groups, arguing the attack exemplified a broader threat. Former President Trump and members of his team have blamed the "radical left" for rising political violence and promised consequences. How investigators ultimately characterize Robinson's motives could shape political responses and potential policy measures.
Authorities emphasized that their inquiries remain ongoing and cautioned against premature conclusions. Prosecutors said additional evidence is being reviewed and that the decision to seek the death penalty reflects the gravity of the alleged offense. Robinson faces multiple state-level criminal counts while federal authorities have not announced charges.
The case comes amid heightened concern in the United States about politically motivated attacks and online radicalization. Law enforcement and lawmakers have in recent years debated how to address threats that emerge at the intersection of digital communities and real-world violence. The investigation into the killing of Kirk is likely to add to those discussions as courts and officials move forward with criminal proceedings.