OREM, Utah — A 22-year-old Utah man who was arrested and booked on murder charges in the killing of Charlie Kirk held deep disdain for the conservative activist’s provocative viewpoints and indicated to a family member that he was responsible for the shooting, authorities said Friday.
Tyler Robinson became “more political†in the run-up to the shooting and mentioned during a dinner with family that Kirk would be visiting Utah, Gov. Spencer Cox said at a news conference.

Robinson
The governor cited as evidence engravings on bullet casings found in the rifle that authorities believe was used in the attack, as well as chat app messages attributed to the suspect that a roommate shared with law enforcement.
The governor credited Robinson’s family with helping turn him over to authorities.
President Donald Trump first heralded the arrest on the Fox News show “Fox & Friends.â€
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Robinson is believed to have acted alone, and the investigation is ongoing, Cox said. He was arrested on suspicion of capital murder, weapons and obstruction offenses. He was expected to be formally charged Tuesday ahead of an initial court appearance.
Robinson’s arrest late Thursday capped a frenetic day-and-a-half search that just hours earlier seemed stuck when authorities pleaded for tips and leads from the public.
The killing captivated the public not only because of Kirk’s outsized influence in conservative political circles and his close connections with Trump but also because of the pressing questions it raised about the escalating toll of political violence that has spanned the ideological spectrum.
“This is our moment: Do we escalate or do we find an off-ramp?†Cox asked, making a plea for young people to bridge differences through common ground rather than violence. “It’s a choice.â€

Utah Gov. Spencer Cox speaks Friday at a news conference as FBI Director Kash Patel looks on in Orem, Utah.
New details
Authorities have yet to reveal a motive, but they described evidence they said shed potential light on the slaying.
That included the engravings on bullet casings, including one that said, “Hey, fascist! Catch!†Cox said.
In addition, a roommate shared with authorities messages from the chat app Discord that involved a contact named Tyler and discussed a rifle wrapped in a towel, engraved bullets and a scope, the governor said.
A Mauser .30-caliber, bolt-action rifle was found in a towel in a wooded area along the path investigators believe Robinson took after firing a single shot from a distant roof and then fleeing.

Wendy Lucas, a Utah Valley University student, looks at a memorial set up for Charlie Kirk on Friday at Utah Valley University in Orem, Utah.
The clothes the suspect wore when confronted by law enforcement late Thursday were consistent with what he wore when he arrived on campus a day earlier, and a family member confirmed he drove a gray Dodge Challenger like the one seen in surveillance video that recorded Robinson driving to the university the day of the shooting, Cox said.
Robinson’s father recognized him from the photos released by the FBI and told him to turn himself in. Robinson refused at first, but then changed his mind, according to a law enforcement official who spoke on the condition of anonymity. His father reached out for help to their youth pastor, who also occasionally works with the U.S. Marshals and called the agency so he could turn himself in.

This undated combination of images provided provided by the Federal Bureau of Investigation shows a person of interest in connection with the fatal shooting of Charlie Kirk at Utah Valley University on Wednesday in Orem, Utah.
Meanwhile, investigators continued to dig into the background of Robinson, who was admitted to Utah State University, about 80 miles north of Salt Lake City, on a prestigious academic scholarship, according to a video of him reading his acceptance letter posted to a family member’s social media account. He attended for only one semester in 2021, a university spokesperson said.
He currently is enrolled in an electrical apprenticeship program at Dixie Technical College near his hometown, a suburb of St. George in southern Utah.
Robinson is registered as an unaffiliated voter and does not appear to have a prior criminal record. His address was still listed as his parent’s home, about a 3.5-hour drive south of the Utah Valley University campus where Kirk was shot.
Robinson’s family members did not immediately return messages seeking comment. It was not clear if he had a lawyer.
At his family’s home, window coverings were drawn, and a pickup truck blocked access to the driveway. There was a heavy law enforcement presence, with several police vehicles parked along the street, which was closed at both ends.

The casket containing the body of Charlie Kirk is removed from Air Force Two on Thursday at Phoenix Sky Harbor International Airport in Phoenix.
‘He didn’t deserve this’
Kirk was a conservative provocateur who became a powerful political force by rallying young Republican voters and was a fixture on college campuses, where he invited sometimes-vehement debate on social issues.
Kirk co-founded the nonprofit political organization Turning Point USA, based in Arizona. He was speaking at a campus event on the first stop of his “American Comeback Tour,†at the time of Wednesday’s shooting.
He was taking questions from an audience member about gun violence when a shot rang out. Kirk reached up with his right hand as blood gushed from the left side of his neck.
Trump, who was joined by Democrats in condemning the violence, said he would award Kirk the Presidential Medal of Freedom, the nation’s highest civilian honor. Vice President JD Vance and his wife, Usha, visited with Kirk’s family Thursday in Salt Lake City and then escorted Kirk’s casket to his home state of Arizona aboard Air Force Two.
Photos before and after the shooting of Charlie Kirk

Charlie Kirk hands out hats Wednesday before speaking at Utah Valley University in Orem.

Charlie Kirk speaks Wednesday before he was shot during Turning Point's visit to Utah Valley University in Orem.

The crowd reacts Wednesday after Charlie Kirk, the CEO and co-founder of the conservative youth organization Turning Point USA, was shot at the Utah Valley University in Orem.

The crowd reacts Wednesday after Charlie Kirk was shot during Turning Point's visit to Utah Valley University in Orem.

Law enforcement tapes off an area Wednesday after Charlie Kirk, the CEO and co-founder of the conservative youth organization Turning Point USA, was shot at the Utah Valley University in Orem.

A SWAT team heads onto the Utah Valley University campus Wednesday in Orem after Charlie Kirk was shot during Turning Point's visit.

Armed officers walk around the neighborhood bordering the Utah Valley University campus in Orem, knocking on doors and asking for information, after Charlie Kirk was shot Wednesday during Turning Point's visit to the college.

The national headquarters of Turning Point USA is seen Wednesday in Phoenix after the shooting of Charlie Kirk, the 31-year-old CEO and co-founder of the organization, during a Utah college event.

A well-wisher, front, receives a hug from a member of security Wednesday as he drops off flowers at the national headquarters of Turning Point USA  in Phoenix after the shooting death of Charlie Kirk, the organization's CEO.

A well-wisher is overcome Wednesday after dropping off flowers at the national headquarters of Turning Point USA in Phoenix after the shooting death of Charlie Kirk, the organization's CEO.

A worker lowers the American flag to half-staff Wednesday on the North Lawn at the White House in Washington after Charlie Kirk, the CEO and co-founder of Turning Point USA, was killed in a shooting.

People take photos after the American flag was lowered to half-staff Wednesday on the North Lawn at the White House in Washington after Charlie Kirk, the CEO and co-founder of Turning Point USA, was killed in a shooting.

Speaker of the House Mike Johnson, R-La., speaks to reporters Wednesday at the Capitol in Washington about the shooting of Turning Point USA co-founder and CEO Charlie Kirk.

Flowers are seen Wednesday outside the Keller Building on the Utah Valley University campus after news broke that Charlie Kirk died after he was shot earlier during Turning Point's visit to the university in Orem.

Police arrive at the national headquarters of Turning Point USA in Phoenix shown after the Wednesday shooting death of Charlie Kirk, the organization's co-founder and CEO.

Allison Hemingway-Witty cries Wednesday after Charlie Kirk was shot during Turning Point's visit to Utah Valley University in Orem.

Utah Highway Patrol vehicles park outside Timpanogos Regional Hospital on Wednesday in Orem, Utah.

Joseph Vogl stands outside Timpanogos Regional Hospital on Wednesday in Orem, Utah.

Cecilia Garcia and Dawn Thomas react Wednesday in Westminster, Calif., as they learn the news on social media of conservative activist Charlie Kirk being shot at a college event in Utah.

Police work Wednesday on the Utah Valley University campus in Orem after Charlie Kirk was shot during Turning Point's visit.
Tucker and Richer reported from Washington. Associated Press writers Nicholas Riccardi in Denver; Michael Biesecker, Brian Slodysko, Lindsay Whitehurst and Michelle L. Price in Washington; Ty O'Neil in Orem, Utah; Hallie Golden in Seattle; and Meg Kinnard in Chapin, S.C., contributed to this report.