Charlie Kirk's assassination on September 10th sent shockwaves through the conservative movement.
Since Kirk's death, prosecutors have been building a capital murder case against Tyler Robinson.
And now a judge is weighing whether prosecutors can even stay on the case.
Defense attacks prosecution team over family connection to shooting
Tyler Robinson appeared in a Utah courtroom Friday afternoon facing arguments that could disqualify the entire Utah County Attorney's Office from prosecuting his capital murder case.
Robinson's defense team claims prosecutors have a conflict of interest because a deputy county attorney's adult child witnessed Kirk's assassination at Utah Valley University.
The child stood roughly 85 feet from where Kirk was seated when he was shot in the neck.
Moments after the shooting, the witness texted family members including the prosecutor father.
"CHARLIE GOT SHOT," one message read.
Defense attorneys argue those real-time texts from the chaotic scene created an emotional connection that compromised the prosecution's objectivity.
The defense motion claims prosecutors rushed to file death penalty charges just six days after Kirk's murder, faster than normal.
"The rush to seek death in this case evidences strong emotional reactions," Robinson's attorneys wrote.
In Utah, prosecutors have 60 days after arraignment to file a death penalty notice.
The Utah County Attorney's Office filed theirs on the same day they charged Robinson with aggravated murder.
Prosecutors fire back with ethical wall defense
Utah County Attorney Jeff Gray pushed back hard against claims his office can't handle the case fairly.
Gray argued the deputy prosecutor's child isn't a material witness or victim in the case.
"Under these circumstances, there is virtually no risk, let alone a significant risk, that it would arouse such emotions in any father-prosecutor as to render him unable to fairly prosecute the case," Gray wrote in court filings.
The prosecution claims the witness didn't even see the actual shooting.
According to an affidavit, the child heard a pop and someone yell "he's been shot" but had no direct line of sight to the rooftop where Robinson allegedly fired from.
The witness only learned Kirk was the victim after running for cover and speaking with others inside a nearby building.
Gray also pointed out that thousands of other people witnessed the assassination.
The prosecution doesn't need to rely on this one witness, especially since the person has no personal knowledge of the actual murder.
Legal experts split on whether conflict exists
Chicago criminal defense attorney Donna Rotunno called the defense motion "ridiculous."
"If the family member was the victim, then maybe this is an issue," Rotunno told Fox News Digital.
"If Erika Kirk was related to a prosecutor, they would have more ground to stand on."
But Baltimore attorney Randolph Rice said prosecutors have a duty to avoid even the appearance of impropriety in high-profile capital cases.
"The legal system takes conflicts of interest seriously, but a prosecutor isn't automatically disqualified just because someone in their family witnessed a traumatic event connected to the case," Rice explained.
"The key issue is whether that relationship creates a real risk that decisions are being driven by emotion instead of evidence."
California precedent shows ethical walls can cure prosecutor conflicts in some situations.
In the 2017 case Melcher v. Superior Court, a California appeals court ruled that even when a district attorney's spouse was the victim in an assault case, an ethical wall was sufficient to prevent conflict.
The court found recusal of the individual prosecutor plus an ethical screen protected the defendant's right to a fair trial.
Rice noted the stakes are enormous for Robinson's defense team.
Getting the entire prosecutor's office kicked off the case could lead to a different state agency evaluating the evidence.
A new prosecutor might take a different view on seeking the death penalty entirely.
"Getting this prosecutor or prosecutor's office kicked off the case opens the possibility of a different state agency coming in and evaluating this case differently and possibly not seeking the death penalty — which would be a huge win for Tyler Robinson's team and for him," Rice said.
Federal prosecutors could always add charges to keep the death penalty on the table if state prosecutors back away.
Judge Tony Graf heard arguments Friday afternoon on whether to disqualify the Utah County Attorney's Office.
His ruling could reshape the entire trajectory of the most high-profile political assassination case since Kirk's murder shocked the nation four months ago.
Sources:
- Michael Ruiz and Adriana James-Rodil, "A prosecutor's child witnessed Charlie Kirk's assassination — can he take part in the case?," Fox News, January 16, 2026.
- "Assassination of Charlie Kirk," Wikipedia, accessed January 16, 2026.
- "Charlie Kirk's alleged assassin Tyler Robinson tries to boot prosecutors from case," Fox News, December 2025.
- "Prosecutors in Tyler Robinson capital murder case argue against disqualification," KSL.com, January 2026.
- "People v. Melcher," California Courts Case Access Project, October 3, 2022.
- "Conflicts of Interest," San Francisco District Attorney's Office, 2020.
