Luigi Mangione has pleaded guilty in his federal case connected to the killing of UnitedHealthcare CEO Brian Thompson, bringing a major development to a case that was previously expected to go to trial. During a hearing in Manhattan federal court, Mangione admitted responsibility for the shooting and pleaded guilty to two federal stalking-related charges resulting in death.
The guilty plea could significantly impact the next stage of the legal proceedings, including Mangione’s upcoming state murder case in New York. While the federal case has moved toward sentencing, his attorneys are continuing legal efforts to challenge aspects of the state prosecution.
Mangione Admits Responsibility for Thompson’s Death
During the court hearing, Mangione directly addressed the judge and acknowledged his actions. He said, “After years of enduring pain from a broken back, I shot Mr. Thompson, and he died. I knew what I was doing was illegal.”
According to prosecutors, Mangione tracked Thompson before the shooting and attended a UnitedHealthcare conference while pretending to be an investor to gather information about attendees. Authorities have alleged that he used a firearm created with a 3D printer during the attack.
Mangione pleaded guilty to interstate stalking resulting in death and stalking through the use of interstate facilities resulting in death. The plea ended the federal trial process that had been expected to begin in January.
The family of Brian Thompson attended the hearing and later released a statement expressing that they were relieved Mangione had been held accountable. The family said they now want the court to deliver a sentence reflecting the seriousness of the crime.
Defense Plans to Focus on Mangione’s Mental State
Mangione’s legal team has indicated that his history of physical pain and frustrations with the healthcare system will be part of their argument during sentencing. His attorney Karen Friedman Agnifilo said Mangione experienced “years of severe, debilitating pain” following a back injury and struggled with what he believed were failures in the healthcare and insurance systems.
The defense is expected to present evidence about Mangione’s emotional condition at the time of the shooting while seeking a sentence that avoids the harshest possible outcome.
Despite reports of negotiations between Mangione’s attorneys and federal prosecutors before the hearing, the judge confirmed that there was no formal plea agreement. This means Mangione pleaded guilty without a guaranteed sentence reduction and will rely on the judge’s discretion during sentencing.
Federal Plea Could Affect New York Murder Trial
Mangione’s federal sentencing is scheduled for December 18. The judge noted that federal sentencing guidelines could place his punishment within a range of approximately 24 to 30 years, although the final decision remains with the court.
The federal case may also influence Mangione’s separate New York state prosecution, where he faces murder and weapons-related charges. His lawyers have already filed motions arguing that continuing the state case could violate protections against being prosecuted twice for the same crime.
The Manhattan District Attorney’s Office said it remains prepared to pursue the state case while continuing to seek justice for Thompson’s family. Prosecutors previously announced plans to pursue a conviction for the alleged killing.
Mangione had previously pleaded not guilty in the state case, which is currently scheduled to proceed in September. The outcome of his federal sentencing and the ongoing legal challenges could determine how the remaining proceedings develop.
