Forensic theory surfaces in Charlie Kirk shooting case as court date nears
A Utah man is charged in the incident; a forensic psychiatrist proposes a motive tied to defending a transgender partner, a claim not yet established by authorities.

A Utah man is suspected of fatally shooting conservative activist Charlie Kirk during a campus event, according to charging documents. Tyler Robinson, 22, was charged with murder and related counts after authorities say he opened fire as Kirk took questions at Utah Valley University. Moments earlier, an audience member asked Kirk whether transgender Americans have accounted for several mass shootings in the last decade; Kirk responded, “Too many.”
Robinson has been arraigned on seven charges, including murder and witness tampering, and remains in custody. Court records outline the sequence of events and say officers recovered a firearm at the scene. Investigators say Robinson was in a relationship with a transgender roommate, Lance Twiggs, 22, who has been described to police as a central figure in the alleged motive. Surveillance footage from the campus showed the suspect fleeing after the shooting.
A forensic psychiatrist, Dr Carole Lieberman, told the Daily Mail there is a theory behind the attack: that Robinson acted to defend his transgender partner from what he perceived as Kirk’s anti-trans stance. Lieberman said, in paraphrase, that Tyler’s partner was a man transitioning to a woman, and that Kirk was seen as very anti-trans. She added that the shooter may have felt he was defending his partner’s honor by killing Charlie Kirk, and she noted a historical pattern in which men strike out to defend a loved one’s reputation.
Lieberman said there is evidence the case could involve complex personal dynamics, including Robinson’s sexuality, which she suggested may be a variation of LGBTQ+ or possibly an incel. She acknowledged she did not examine Robinson and that his sexuality remains publicly unclear. The expert also cautioned that the majority of LGBTQ people are not violent. Robinson’s background, she said, includes Republican and Mormon roots, which can contrast with LGBTQ+ advocacy in some communities. Court documents indicate Robinson’s mother described heated political arguments with his father, and notes that Robinson was more supportive of gay and trans rights than his father in some respects.
The Daily Mail report details Robinson’s complex online history, including porn-related searches and interests described as outside mainstream norms. Lieberman linked some of these personal factors to the broader pattern she says may connect to the attack, though she emphasized that political factors may also be at play.
Charlie Kirk, the event’s target, is known for conservative Christian views on transgender issues and has been vocal in opposition to LGBTQ+ rights. He has previously described being transgender as a mental delusion and argued that sex assigned at birth is a factual basis for policy positions. Kirk’s public profile and remarks form part of the political context surrounding the case, which Lieberman said could help explain why the incident attracted national attention.
Other psychiatrists have cautioned that the shooting may not have been motivated by politics, arguing instead that an impaired perception of reality or personal grievances could have driven the act. Robinson has not yet offered a public explanation, and prosecutors have not stated a definitive motive beyond the charges and the alleged sequence of events.
Robinson, who has not registered as a voter and had not previously campaigned in elections, comes from a background described by investigators as politically contentious within his family. Investigators have noted his relationship with Twiggs as a potential focal point of the alleged motive, though the authorities have not declared a motive as proven.
The case unfolds amid a national debate over political rhetoric and violence. The Gun Violence Archive defines mass shootings as incidents with four or more victims, and the organization notes that there have been thousands of such incidents since 2013. Its data show transgender individuals have appeared among mass shooters a small number of times, highlighting the rarity of such cases in the broader landscape of gun violence.
Robinson is due back in court Monday, September 29, for further proceedings on the seven charges, including murder and witness tampering. He has not publicly commented on the allegations, and authorities have not disclosed additional details about the defense or potential motive beyond the information included in court documents and media interviews.