NEW YORK – Legal representatives for Luigi Mangione argue that the decision by Attorney General Pam Bondi to pursue the death penalty in the case of UnitedHealthcare CEO Brian Thompson’s murder is compromised due to her previous role as a lobbyist at a firm linked to the insurer’s parent company.

Before spearheading the push to classify Mangione’s case as a capital offense, Bondi was a partner at Ballard Partners. This connection, Mangione’s lawyers claim, represents a “significant conflict of interest” that violates his right to due process. They have requested that the court prohibit prosecutors from seeking the death penalty and dismiss certain charges. A hearing is slated for January 9.

According to Mangione’s legal team, Bondi, by participating in the death penalty deliberations and making public remarks indicating that Mangione should face execution, violated an ethical commitment she made upon taking office in February. She had promised to abstain from cases involving Ballard clients for a year.

They further assert that Bondi continues to benefit financially from her previous work with Ballard and indirectly from its dealings with UnitedHealth Group through a profit-sharing arrangement and a defined contribution plan managed by the firm.

The lawyers argue that Bondi, who is responsible for seeking Mangione’s execution, has a vested financial interest in the proceedings against him. “This conflict of interest should have compelled her to step aside from any decision-making in this case,” they stated.

Requests for comment have been directed to both the Justice Department and Ballard Partners but have yet to receive a response.

Bondi announced in April that she was directing Manhattan federal prosecutors to seek the death penalty, declaring even before Mangione was formally indicted that capital punishment was warranted for a “premeditated, cold-blooded assassination that shocked America.”

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

Mangione, 27, the Ivy League-educated scion of a wealthy Maryland family, was arrested five days later at a McDonald’s in Altoona, Pennsylvania, about 230 miles (about 370 kilometers) west of Manhattan. He has pleaded not guilty to federal and state murder charges. The state charges carry the possibility of life in prison. Neither trial has been scheduled.

Friday’s filing put the focus back on Mangione’s federal case a day after a marathon pretrial hearing ended in his fight to bar prosecutors in his state case from using certain evidence found during his arrest, such as a gun that police said matched the one used to kill Thompson and a notebook in which he purportedly described his intent to “wack” a health insurance executive. A ruling isn’t expected until May.

Mangione’s defense team, led by the husband-and-wife duo of Karen Friedman-Agnifilo and Marc Agnifilo, zeroed in on Bondi’s past lobbying work as they seek to convince U.S. District Judge Margaret Garnett to rule out capital punishment, throw out some charges and exclude the same evidence they want suppressed from the state case.

In a September court filing, Mangione’s lawyers argued that Bondi’s announcement that she was ordering prosecutors to seek the death penalty — which she followed with Instagram posts and a TV appearance — showed the decision was “based on politics, not merit.” They also said her remarks tainted the grand jury process that resulted in his indictment a few weeks later.

Bondi’s statements and other official actions — including a highly choreographed perp walk that saw Mangione led up a Manhattan pier by armed officers, and the Trump administration’s flouting of established death penalty procedures — “have violated Mr. Mangione’s constitutional and statutory rights and have fatally prejudiced this death penalty case,” his lawyers said.

In a court filing last month, federal prosecutors argued that “pretrial publicity, even when intense, is not itself a constitutional defect.”

Rather than dismissing the case outright or barring the government from seeking the death penalty, prosecutors argued, the defense’s concerns can best be alleviated by carefully questioning prospective jurors about their knowledge of the case and ensuring Mangione’s rights are respected at trial.

“What the defendant recasts as a constitutional crisis is merely a repackaging of arguments” rejected in previous cases, prosecutors said. “None warrants dismissal of the indictment or categorical preclusion of a congressionally authorized punishment.”

Mangione’s lawyers said they want to investigate Bondi’s ties to Ballard and the firm’s relationship with UnitedHealth Group and will ask for various materials, including details of Bondi’s compensation from the firm, any direction she’s given Justice Department employees regarding the case or UnitedHealthcare, and sworn testimony from “all individuals with personal knowledge of the relevant matters.”