Luigi Mangione has pleaded guilty to federal charges connected to the 2024 killing of UnitedHealthcare CEO Brian Thompson, making a dramatic turn in one of the most closely watched U.S. criminal cases of recent years. Mangione, 28, entered his plea in Manhattan federal court Friday, acknowledging federal stalking charges that carry a potential sentence of life in prison without parole.
The plea comes after the federal case changed significantly earlier this year. U.S. District Judge Margaret Garnett dismissed the federal murder charge and related weapons counts, eliminating the only federal charge that could have exposed Mangione to the death penalty. The remaining federal case centers on two stalking counts alleging conduct that resulted in Thompson’s death.
Thompson, 50, was shot on a Manhattan sidewalk on Dec. 4, 2024, as he was heading to UnitedHealth Group’s investor conference. Mangione was arrested five days later in Altoona, Pennsylvania, after a McDonald’s employee recognized him from photographs circulated in the media. A New York court record confirms that police recovered a 9mm handgun, a silencer and other items from his backpack following the arrest.
The federal plea does not automatically end the case against Mangione. He still faces a separate New York state prosecution for murder and other charges, and jury selection is scheduled to begin on Sept. 8, 2026. His defense is expected to argue that the federal resolution should prevent the state prosecution from continuing, while New York prosecutors are expected to challenge that position.
The legal dispute could therefore become the next major chapter of the case. If the state prosecution proceeds, Mangione could still face a sentence of 25 years to life if convicted of the state murder charge. The federal guilty plea, meanwhile, moves that case toward sentencing rather than the federal trial that had previously been expected in 2027.
The killing has also had an impact far beyond the courtroom. Thompson’s death triggered a national debate over the U.S. health insurance industry, while Mangione attracted an unusual following from people who said they were frustrated with the healthcare system. Thompson’s family and public officials have strongly condemned both the killing and the reaction surrounding Mangione.
