Luigi Mangione has pleaded guilty to federal stalking charges connected to the killing of UnitedHealthcare CEO Brian Thompson, admitting in court that he tracked down and fatally shot the health insurance executive in Manhattan in December 2024.
Mangione, 28, entered the guilty plea on Friday in a federal court in New York. During the hearing, he directly acknowledged shooting Thompson and said he understood that his actions were illegal and could cause death or serious injury.
The federal charges to which Mangione pleaded guilty involve interstate stalking resulting in death and stalking through the use of interstate facilities resulting in death. The charges carry the possibility of life imprisonment.
According to prosecutors, Mangione carefully planned the attack and used a false identity to obtain information about a UnitedHealthcare investor conference that Thompson was scheduled to attend. He then travelled to New York, where Thompson was shot outside a Manhattan hotel on December 4, 2024.
The case attracted enormous public attention and sparked a wider debate in the United States over the health insurance industry, particularly after writings found in connection with the investigation expressed Mangione’s anger toward the healthcare system.
Despite his federal guilty plea, Mangione’s legal battle is not necessarily over. He still faces a separate murder case brought by New York prosecutors.
His lawyers have already asked the state court to dismiss that case, arguing that continuing with a separate prosecution after his federal conviction could violate protections against double jeopardy. Legal experts say the argument could significantly affect the state proceedings.
The Manhattan District Attorney’s Office, however, continues to pursue the state case, maintaining that its charges involve different legal elements.
Mangione is scheduled to be sentenced in the federal case on December 18, 2026, with prosecutors seeking a life sentence. His state murder trial had been scheduled to begin in September, although the double-jeopardy challenge could now delay or potentially prevent that trial from proceeding.
The guilty plea marks a major development in a case that began with Thompson’s fatal shooting and a nationwide manhunt. It also leaves the courts to determine how Mangione’s federal conviction will affect the separate state prosecution and ultimately how long he will remain behind bars.
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