No September murder trial for Luigi Mangione after federal guilty plea

Mangione’s state murder case is on ice while his team argues for double jeopardy following last week’s bombshell guilty plea in federal court.MANHATTAN (CN) — Luigi Mangione’s state murder trial will no longer start on Sept. 8 after the 28-year-old copped to shooting and killing a healthcare executive last week in federal court.On Monday, New York Supreme Court Justice Gregory Carro issued a brief ruling indicating that the next court date will now be on Dec. 10 to duke out Mangione’s double jeopardy motion. His state trial is effectively delayed indefinitely, if it happens at all.Mangione was charged for the 2024 slaying of UnitedHealthcare CEO Brian Thompson in two jurisdictions: New York State Supreme Court and New York federal court. He initially pleaded not guilty in both cases, but changed his plea in the federal case last week and admitted to two fatal stalking counts.After the bombshell hearing, Mangione’s team immediately filed a motion to dismiss the state murder case, writing that “continuing the state prosecution after Mr. Mangione’s federal plea … violates New York’s double jeopardy law.”“On Aug. 14, 2026, Mr. Mangione pleaded guilty in federal court to causing Brian Thompson’s death through stalking," Mangione argued in the motion. “Mr. Mangione’s federal plea is a prosecution that terminated in a ‘conviction upon a plea of guilty,’ and would therefore bar the state from separately prosecuting Mr. Mangione for murder because both prosecutions are based on the same exact act.”Depending on whether or not Carro agrees, Mangione could technically still face a trial in state court, but the delay caused by the double jeopardy motion means that likely won’t happen until 2027.The Manhattan District Attorney’s Office, which is prosecuting Mangione for second-degree murder, is committed to keeping the case alive. It argued in a previous court filing that it has “primary jurisdiction” over federal prosecutors since it had him in custody before the feds did.When reached for comment, a spokesperson for the office referred to its Friday statement following Mangione’s guilty plea.“Since December 2024, the Manhattan D.A.’s Office has been tirelessly preparing to pursue a trial conviction in New York State Supreme Court for the alleged cold-blooded murder of Brian Thompson,” the office said Friday. “We are encouraged that Mr. Thompson’s family received a measure of accountability today. While the federal sentence is pending, we are prepared to litigate the defense motions."The district attorney’s office is due to respond to Mangione’s double jeopardy motion by Oct. 9. Carro set the defense’s reply deadline to Oct. 30.Mangione’s legal team declined to comment on Carro’s ruling Monday.The guilty plea was a milestone in a saga that has bred a swell of public support for Mangione, an Ivy League-educated Maryland native who said he stalked Thompson beyond state lines because of his own personal frustrations with the for-profit healthcare industry.In his allocution, Mangione said he endured “severe pain from a broken back” for several years that forced him to navigate “the obstacles of the health insurance system.” That experience prompted him to target Thompson in New York City, where the 50-year-old CEO and father of two was slated to attend UnitedHealthcare’s annual investor conference.Mangione admitted to impersonating an investor at a major financial firm in an email to get information about the conference from UnitedHealthcare.“Unlike my previous interactions with insurers, I received an immediate response within an hour,” he said in court.Mangione pleaded guilty just days after what would have been the final pretrial conference before his September state murder trial, where his lawyers caught heat from Carro for scrutinizing public access to his proceedings. Following that conference, the defense requested a last-minute federal court date, which immediately raised speculations of a surprise change of plea from Mangione.Much of Mangione’s support originates from his expressed disdain for the U.S. healthcare system. Investigators say they recovered handwritten journal entries from him that referred to the industry as “parasitic” and UnitedHealthcare as “a company that literally extracts human life force for money.”Subscribe to our free newslettersOur weekly newsletter Closing Arguments offers the latest about ongoing trials, major litigation and rulings in courthouses around the U.S. and the world, while the monthly Under the Lights dishes the legal dirt from Hollywood, sports, Big Tech and the arts.Additional Reads