NEW YORK – Luigi Mangione’s legal team requested a judge on Saturday to prevent federal prosecutors from pursuing the death penalty in the murder case of UnitedHealthcare CEO Brian Thompson. They claim his case was prejudiced when his arrest was dramatized as a “Marvel movie” spectacle and because of public declarations advocating for his execution.

After achieving a legal win that dropped terrorism charges in Mangione’s state murder case, his lawyers are now working to dismiss his federal case. They focus on U.S. Attorney General Pam Bondi’s earlier statement before his April indictment, where she asserted that the death penalty was justified for a “premeditated, cold-blooded assassination that shocked America.”

Bondi’s comments and other official actions, such as a highly orchestrated perp walk with Mangione being led up a Manhattan pier by armed officers, and the Trump administration neglecting established death penalty protocols, “have violated Mr. Mangione’s constitutional and statutory rights and have critically prejudiced this death penalty case,” his attorneys stated in a court submission.

Mangione’s defense, led by former Manhattan prosecutor Karen Friedman Agnifilo, urged U.S. District Judge Margaret Garnett, appointed by President Joe Biden, to “redress the government’s errors and prevent this case from advancing as a death penalty prosecution.”

Defense says ‘politics, not merit’ drove death penalty decision

Bondi announced in April her directive for Manhattan federal prosecutors to pursue the death penalty for Mangione. This marked the first capital case from the Justice Department since President Donald Trump resumed office on Jan. 20, fulfilling his promise to reactivate federal executions, which his predecessor Biden had suspended.

Mangione’s attorneys contend that Bondi’s announcement, which was followed by Instagram posts and a television appearance, demonstrated the decision was “politically, not merit-based” and claim her comments compromised the grand jury process that led to his indictment shortly thereafter.

Trump, who oversaw an unprecedented run of 13 executions at the end of his first term, offered his own opinions about Mangione on Thursday — despite court rules that prohibit any pretrial publicity that could interfere with a defendant’s right to a fair trial.

“Think about Mangione. He shot someone in the back, as clear as you’re looking at me or I’m looking at you. He shot — he looked like a pure assassin,” Trump told Fox News.

“There is a high bar to dismissing an indictment due to pretrial publicity,” Mangione’s lawyers wrote in their 114-page filing. “However, there has never been a situation remotely like this one where prejudice has been so great against a death-eligible defendant.”

Federal prosecutors have until Oct. 31 to respond. Mangione is due back in court in the federal case Dec. 5, days after the start of pretrial hearings in his state case. No trial date has been set for either case.

Mangione, 27, has pleaded not guilty to state and federal murder charges.

Dueling prosecutions, dismissed charges and a devoted following

Surveillance video showed a masked gunman shooting Thompson, 50, from behind on Dec. 4, 2024, as he arrived to a Manhattan hotel for his company’s annual investor conference. Police say “delay,” “deny” and “depose” were scrawled on the ammunition, mimicking a phrase used to describe how insurers avoid paying claims.

Mangione, the Ivy League-educated scion of a wealthy Maryland family, was arrested five days later in Altoona, Pennsylvania, about 230 miles (about 370 kilometers) west of Manhattan. Authorities say he had a 9 mm handgun and a notebook describing his intent to “wack” an insurance executive.

Mangione’s lawyers contend the simultaneous prosecutions amount to double jeopardy.

In the federal case, Mangione is charged with murder through use of a firearm, which carries the possibility of the death penalty, as well as stalking and gun offenses.

On Tuesday, the judge in his state case threw out terrorism charges that carried the possibility of a mandatory life sentence without parole. But Judge Gregory Carro rejected the defense’s request to dismiss the state prosecution entirely, saying the double jeopardy argument is premature because neither case has gone to trial or resulted in a guilty plea.

The state case will proceed with other charges, including an intentional murder count that carries a potential punishment of 15 years to life in prison, with the possibility of parole. Unlike the federal system, New York does not have the death penalty.

Mangione has attracted a cult following as a stand-in for frustrations with the health insurance industry.

A few dozen supporters — mostly women — packed three rows in the rear of the courtroom gallery at his hearing Tuesday in state court. Some wore green, the color of the Mario Bros. video game character Luigi, and one woman sported a “FREE LUIGI” T-shirt.