Manhattan, NY — Luigi Mangione’s legal team has reversed course on a defense strategy that could have meant the difference between a maximum 25-year sentence and life in prison, abandoning plans to argue he suffered an “extreme emotional disturbance” when UnitedHealthcare CEO Brian Thompson was shot dead in Midtown Manhattan in December 2024.
The about-face came just one day after Mangione’s lawyers told Judge Gregory Carro they intended to pursue the psychiatric defense, which under New York law can reduce a murder charge to first-degree manslaughter if jurors accept it.
Defense attorney Karen Friedman Agnifilo notified Carro in a letter on Thursday that the team was withdrawing its notice under the state’s psychiatric defense statute.
The reversal followed a Thursday deadline by which Mangione’s lawyers were required to hand prosecutors information backing up the emotional disturbance claim, including details about what triggered it.
Carro had pressed the defense on this point a day earlier, telling the courtroom that prosecutors needed to know “the malady and how that triggered emotional disturbance.”
A risky strategy was abandoned
Legal analysts had already flagged the approach as a gamble. Using the defense would have essentially required Mangione’s team to concede that he killed Thompson while arguing that mitigating circumstances should lessen the punishment.
It would not have cleared him of responsibility, but a successful argument would have forced jurors to convict on manslaughter rather than murder, capping potential prison time at 25 years instead of life.
Attorneys following the case before the withdrawal noted the strategy carried risk beyond the state courtroom. Mangione also faces a separate federal trial, where stalking charges are pending and where an extreme emotional disturbance defense is not available.
Legal observers had warned that admitting a distress-driven motive in state court could hand federal prosecutors material to use later, since the two cases run on separate tracks with different rules.
Friedman Agnifilo had also pushed back this week against Carro’s decision to unseal records tied to the psychiatric defense, arguing it could prejudice Mangione’s position in the federal case where the same facts would be scrutinized under different legal standards.
Case moves toward September trial
A transcript from a sealed hearing held June 3 was made public Thursday after Carro ordered it unsealed, though it remains unclear how much that material influenced the defense’s sudden change in approach.
Mangione, 28, has pleaded not guilty to all state and federal charges. His state trial is scheduled to begin September 8, with the federal trial set to follow on October 13.
Prosecutors allege Mangione traveled across the country to ambush Thompson outside a Manhattan hotel where the executive was headed for UnitedHealth Group’s annual investor conference.
Surveillance footage showed a masked gunman shooting Thompson from behind, and police said shell casings recovered at the scene bore the words “delay,” “deny,” and “depose,” a phrase associated with how insurers handle claims.
Mangione was arrested five days after the shooting at a McDonald’s in Altoona, Pennsylvania, roughly 230 miles from New York City. Prosecutors say a notebook and a 3D printed handgun, later tied to him, support their case, including writings describing frustration with the health insurance industry.
Neither Mangione’s defense team nor the Manhattan district attorney’s office immediately commented on the withdrawn defense strategy.
