Media reports say the man arrested in the fatal shooting of conservative activist Charlie Kirk was living with a transgender partner who turned over text messages to investigators that may relate to the case.
Kirk, 31, was shot in the neck while speaking at a speaking event at Utah Valley University before an audience of roughly 3,000 people. Authorities arrested 22-year-old Tyler Robinson late Thursday and he is being held in custody as the investigation continues, according to multiple news reports.
Citing law enforcement sources and interviews, U.S. outlets including Fox News reported that Robinson shared a three-bedroom apartment with a partner who was described in those reports as transgender and "transitioning from male to female." The partner is reported to be cooperating with the FBI and, according to one source quoted by Fox News, is not considered a suspect.
The reports said the roommate handed over text messages allegedly sent by Robinson after the killing. Those messages reportedly included information about where to recover the rifle believed to have been used, which the reports say was left in a wooded area. Those details were described to media outlets by unnamed sources; law enforcement agencies have not publicly confirmed the contents of any messages.
Local and federal investigators are leading the inquiry into the shooting. Authorities in Utah have said the criminal investigation is ongoing. Public statements from the FBI and the Utah County Sheriff's Office have confirmed the arrest but provided limited public detail about motive or evidence as the probe continues.
Kirk is a prominent conservative commentator and founder of a political organization. His widow, Erika Kirk, made a televised address Friday night in which she described her husband as "the perfect husband and father" and said his death would galvanize supporters. In remarks carried live, she said, "My husband laid down his life for me, for our nation, for our children," and called the killing an act that would incite further activism among his supporters.
The case has already drawn reactions beyond the United States. In the United Kingdom, the Oxford Union said its incoming president, George Abaraonye, would face disciplinary proceedings after messages posted in a student WhatsApp chat -- which included the phrase "Charlie Kirk got shot, let's f***ing go" -- were reported to the university's student newspaper. The Union said it was looking into the matter.
Media accounts of the roommate and the alleged messages have produced differing characterizations and limited corroboration. A family member of the roommate, quoted by the Daily Mail, declined to confirm reports that the shooting was motivated by the partner's gender identity and said he did not wish to comment on that aspect of the coverage.
Authorities have not publicly identified a motive and have not released charging information beyond reporting that the suspect is in custody. Law enforcement officials routinely withhold certain investigative details while searching for corroborating evidence, interviewing witnesses and executing searches.
The investigation will determine whether the texts and the roommate's cooperation shed light on where the weapon was discarded and whether any others were involved. Officials have not indicated additional arrests or formal charges as of the latest public statements.
The shooting has intensified partisan tensions and debate over political safety at public events, prompting renewed calls from some political figures for increased security at rallies and speaking engagements. Kirk's death also has fed broader national conversations about political violence and the protection of public figures.
News organizations reported the roommate's cooperation with the FBI and the handover of messages late Saturday; authorities have not released an official timeline mapping those disclosures to specific investigative steps. The investigation remains active, and law enforcement agencies urged anyone with information to come forward through official channels.
As the case develops, prosecutors and investigative agencies are expected to review forensic evidence, digital communications and physical searches to determine whether the allegations in media reports are substantiated and whether additional legal action is warranted.