A judge on Wednesday granted Luigi Mangione only a brief delay for his federal trial in the killing of UnitedHealthcare CEO Brian Thompson, moving it from September to October rather than next year as his lawyers had requested.

U.S. District Judge Margaret Garnett based her decision on the schedule of Mangione’s state murder trial, set to begin June 8 and last four to six weeks. She denied the defense’s request to postpone the federal trial until January or February 2027, which they argued would allow them to later delay the state case until September.

Mangione’s attorneys claimed that back-to-back trials on a compressed schedule would violate his constitutional rights. Garnett countered that pushing the federal trial into 2027 simply shifts the same problems from summer to fall.

Jury selection for the federal case will now begin on Oct. 5 instead of Sept. 8, with opening statements and testimony starting Oct. 26 instead of Oct. 13. Garnett noted the schedule could change again if the state trial is postponed.

Mangione, 27, has pleaded not guilty. He faces the possibility of life in prison if he’s convicted in either case.

“There really is no way around taking into account the events in the state case,” Garnett said at a hearing in Manhattan federal court. However, she said, “I am skeptical of moving the (federal) trial wholesale into 2027 when the state trial has not been adjourned. it is a little bit of a tail wagging the dog.”

Along with the new trial date, Garnett compressed preparations for jury selection in the federal case so that they don’t overlap with the state trial, giving Mangione more time to review questionnaires filled out by hundreds of potential jurors.

The judge in the state case, Gregory Carro, previously raised the possibility of moving the state trial to September — but only if federal prosecutors appealed Garnett’s decision barring them from seeking the death penalty. They declined to do so.

Garnett’s ruling on Wednesday leaves Carro little room to delay the state trial, and pushing it until after the federal trial could raise double jeopardy concerns.

The state’s double jeopardy protections kick in if a jury has been sworn in in a prior prosecution, such as a federal case, or if that prosecution ends in a guilty plea. The cases involve different charges but the same alleged course of conduct.

At a court hearing in February, Mangione spoke out against the prospect of two trials, telling the judge: “It’s the same trial twice. One plus one is two. Double jeopardy by any commonsense definition.”

Thompson, 50, was killed on Dec. 4, 2024, as he walked to a midtown Manhattan hotel for UnitedHealth Group’s annual investor conference. Surveillance video showed a masked gunman shooting him from behind.

Police say the words “delay,” “deny” and “depose” were written on the ammunition, mimicking a phrase used by critics to describe how insurers avoid paying claims.

Mangione, a University of Pennsylvania graduate from a wealthy Maryland family, was arrested five days later after he was spotted eating at a McDonald’s in Altoona, Pennsylvania, about 230 miles (370 kilometers) west of Manhattan.

His lawyers have argued that authorities prejudiced his case by turning his arrest into a “Marvel movie” spectacle, including by having armed officers parade him up a Manhattan pier after he was flown to New York and by publicly declaring their desire to seek the death penalty before he was indicted.

In January, Garnett dismissed a federal murder charge — murder through use of a firearm — that had enabled prosecutors to seek capital punishment, finding it legally flawed.

The judge, a former Manhattan federal prosecutor appointed to the bench by President Joe Biden, also threw out a gun charge but left in place stalking charges that carry a maximum punishment of life in prison.