Luigi Mangione’s attorneys plan to argue he suffered “extreme emotional disturbance” when he allegedly killed UnitedHealthcare CEO Brian Thompson. A New York judge said June 17 he will unseal records tied to that psychiatric defense, while also dismissing a ch
Luigi Mangione’s alleged act in New York began with a shot outside a Midtown Manhattan hotel, and now it’s headed toward court with a sharper question than prosecutors and defense attorneys have been fighting over for months: what was happening inside him at the moment of the killing.
On June 17. Acting New York Supreme Court Justice Gregory Carro laid out how the case will handle part of Mangione’s planned defense. Attorneys for Mangione said they intend to argue he was suffering from “extreme emotional disturbance” when he allegedly killed UnitedHealthcare CEO Brian Thompson. Carro said he would unseal records related to the psychiatric defense.
But that decision isn’t coming without friction. Mangione’s lawyer, Karen Friedman Agnifilo, argued that unsealing the records would affect the federal case against him, and Carro’s ruling leaves that tension in full view as multiple proceedings move toward the next phase.
Authorities say Mangione, 28, fatally shot Thompson outside a Midtown Manhattan hotel in New York City on Dec. 4, 2024. He was taken into custody at a Pennsylvania McDonald’s after a five-day manhunt. In New York state court, he was arrested and charged with nine felony counts, including second-degree murder. The New York state trial is expected to begin in September. Mangione also faces separate charges in Pennsylvania and in federal court.
Alongside the fight over psychiatric evidence, the judge also removed one piece of the state case. Carro dismissed a criminal charge related to possession of a large capacity ammunition magazine. The decision came after Carro had ruled in May that evidence found during an initial search of Mangione’s backpack must be suppressed.
That suppressed evidence included a magazine, cell phone, passport, and wallet.
The courtroom dispute hasn’t stopped at what cannot be used. Carro ruled that key evidence discovered during a subsequent search of the same backpack could be used at trial. including a gun and a red notebook. Prosecutors say the notebook contains diary entries written by Mangione that shed light on his decision to target the healthcare executive.
The sequence of rulings is stark: some items tied to the first backpack search are barred. while other items tied to the later search—especially the gun and the red notebook—are still headed toward jurors. With the psychiatric defense records set to be unsealed. the next round of arguments will turn on two competing narratives that share the same moment in time—the moment prosecutors say Mangione made the decision to attack. and the moment the defense wants to explain as something “extreme” and psychologically driven.
For now. the case is moving toward trial in New York with a tightened evidentiary path. a dismissed magazine-related charge. and a defense strategy that hinges on whether jurors will accept “extreme emotional disturbance” as a meaningful explanation for what authorities allege was a deliberate killing.
Luigi Mangione Brian Thompson UnitedHealthcare extreme emotional disturbance psychiatric defense New York Supreme Court Gregory Carro Karen Friedman Agnifilo state murder trial Sept. trial date ammunition magazine charge notebook diary entries