Luigi Mangione admitted in federal court Friday that he tracked and fatally shot UnitedHealthcare CEO Brian Thompson, pleading guilty to two federal stalking charges stemming from the December 2024 killing.
The guilty plea resolves the federal prosecution without a trial, but it does not necessarily end Mangione’s legal battle.
During the August 14 hearing in Manhattan, Mangione acknowledged that he researched UnitedHealthcare’s investor conference, used deceptive communications to obtain information about the event and traveled to New York intending to kill Thompson.
Mangione reportedly told the court that he shot Thompson in the back and understood that his actions were illegal. U.S. District Judge Margaret Garnett accepted his plea and scheduled sentencing for December 18.
Mangione faces a potential life sentence on each federal stalking count. Prosecutors have said they will seek life imprisonment. There was no reported sentencing agreement guaranteeing him a reduced punishment. Reuters
Why Mangione no longer faces the death penalty
Mangione was originally indicted on four federal charges, including a murder-related firearms count that could have made him eligible for the death penalty.
In January 2026, Judge Garnett dismissed the federal murder and firearms charges after finding that they were legally incompatible with the stalking charges as presented. That decision removed the death penalty from the federal case.
His guilty plea Friday covered the two remaining stalking counts.
The killing of Brian Thompson
Thompson was shot outside a Manhattan hotel on December 4, 2024, as he arrived for UnitedHealth Group’s annual investor conference.
Mangione was arrested five days later at a McDonald’s restaurant in Altoona, Pennsylvania. Authorities said he possessed a firearm, fake identification and writings expressing hostility toward the health insurance industry.
In court, Mangione connected his actions to years of serious back pain and his frustration with the American healthcare system. Authorities have said Mangione was not a UnitedHealthcare customer.
The killing became one of the country’s most closely watched criminal cases. It also ignited an intense debate about insurance denials, healthcare costs and public anger toward major corporations.
Those broader concerns, however, do not legally excuse or justify Thompson’s killing.
What happens to the state murder case?
Mangione is still charged with second-degree murder and other crimes in New York state court. Jury selection in that case is scheduled to begin September 8.
Immediately following the federal plea, defense attorney Karen Friedman Agnifilo announced that Mangione’s team had filed a motion seeking dismissal of the state prosecution under New York’s double-jeopardy protections.
The defense argues that Mangione cannot be prosecuted again for the same conduct after pleading guilty in federal court. State prosecutors contend that the cases involve legally distinct offenses and have vowed to oppose the motion.
The Manhattan District Attorney’s Office said it remains committed to pursuing the state case. A judge will now have to determine whether Mangione’s federal guilty plea prevents some or all of the state charges from moving forward. Associated Press
What comes next?
Mangione’s federal sentencing is scheduled for December 18. The most immediate question is whether his state murder trial will begin as planned on September 8 or be postponed while the court considers the defense’s double-jeopardy motion.
Thompson’s family described the plea as an important step toward accountability, while federal prosecutors maintained that political or personal frustration cannot justify targeted violence.
The federal case may be resolved, but the legal fight over Brian Thompson’s killing is far from over.
