PROVO, Utah (AP) — A Utah judge was hearing arguments Tuesday about whether there’s enough evidence to put the man accused of killing Charlie Kirk on trial for aggravated murder, which could make him eligible for the death penalty.

The hearing in state court came after prosecutors in July spent five days presenting what they said was “overwhelming” evidence that Tyler Robinson killed the conservative activist while he was speaking at an open-air event on a college campus.

The 23-year-old defendant turned himself in a day after the shooting at Utah Valley University last September. He has not yet entered a plea, and his lawyers have not offered alternative theories for Kirk’s death. They’ve focused instead on blocking the case from proceeding to trial and trying to get the death penalty taken off the table.

Heavy security surrounds the courthouse

Kirk’s parents, Robert and Kathryn Kirk, entered the heavily secured facility arm in arm before the hearing at the Fourth Judicial District Courthouse in Provo. Erika Kirk was seated beside them. The family stepped out during part of a prosecutor’s argument that described the shooting.

A few local members of Kirk’s organization, Turning Point USA, arrived with signs expressing their support for Erika Kirk but were told by security that they could not have them on the court property.

District Judge Tony Graf has the option to send the case to trial on a lesser charge of murder, which carries a minimum sentence of 15 years and a maximum of life in prison, said Steve Burton, director of the Utah Defense Attorney Association. Graf could also dismiss the charges against Robinson, in which case prosecutors could refile them.

A key factor in charging aggravated murder is whether the shooter knowingly created a risk of death to anyone else as he carried out the killing.

“Tyler James Robinson shot and killed Charlie Kirk because he disagreed with him, and he did it by firing a high-powered rifle into a crowd of over 3,000 people, which created a great risk of death that anyone would know about,” Ryan McBride, a prosecutor with the Utah County Attorney’s Office, told the court. He noted that the bullet could have gone astray, ricocheted or passed through Kirk and struck someone else.

Robinson had no visible reaction to the closing arguments. His mother, Amber Robinson, watched from the courtroom gallery and his father, Matt Robinson, listened with his head bowed.

Defense says others were not endangered

A “mountain of evidence” shows that Robinson was the killer, including DNA, messages with his romantic partner and posts Robinson made on the communications platform Discord, McBride said.

One of Robinson’s attorneys, Staci Visser, argued that the state was trying to “shoehorn” the case into Utah’s aggravated murder statute. Prior case law requires prosecutors to show that there was a high probability — not merely a possibility — that other people could have been killed, she said.

Kirk was seated on a stage in an elevated position, not immediately near anyone else, when he was shot from a rooftop more than 400 feet (122 meters) away, she noted.

“There is one shot. There is one bullet. There is one victim,” Visser said. “There is zero evidence that there was any action taken towards other people.”

The judge planned to announce his decision from the bench, state courts spokesperson Tania Mashburn said.

Robinson also faces potential sentencing enhancements if prosecutors can show he targeted Kirk for his political beliefs.

Prosecutors allege a political motive

Before his death, Kirk and the organization he co-founded, Turning Point USA, galvanized the conservative youth vote to help President Donald Trump win a second term.

Prosecutors have argued that an engraved bullet found in the suspected murder weapon shows that Kirk was targeted for how the defendant perceived his politics. The inscription “Hey Facist! CATCH!” is an “overt political reference,” they argued in court documents.

A handwritten note that prosecutors allege Robinson left for his romantic partner read in part, “I had the opportunity to take out Charlie Kirk, and I took it.” They also allege Robinson wrote in a text message about Kirk: “I had enough of his hatred. Some hate can’t be negotiated out.”

Robinson’s attorneys have argued that prosecutors do not have strong enough evidence to prove a political motivation.

In July, investigators presented DNA analyses that they said linked Robinson to the suspected murder weapon — a bolt-action rifle with one spent round — and a tool he allegedly used to engrave the bullet cartridges.

Robinson’s reported romantic partner, Lance Twiggs, told investigators in a recorded interview that Robinson said the day after Kirk was killed that “he wishes he hadn’t done it.” Later that same day — and only about an hour before turning himself in — Robinson posted “it was me at UVU yesterday” in an online chat room, according to investigators.

Defense attorneys challenged the reliability of DNA tests and unsuccessfully fought against the public release of the Twiggs interview, warning prosecutors would characterize it as a confession. Twiggs said in the interview that he never heard Robinson talk about Kirk before the shooting.

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