No New Developments in the Luigi Mangione Case on September 10, 2025

Lead No court filings or hearings involving Luigi Mangione were held on September 10, 2025, as both his state and federal prosecutions remain in pretrial posture.

Nut Graf Mangione’s dual Manhattan prosecutions-state charges of first-degree murder as an act of terrorism and federal capital murder charges-continue to progress toward key September deadlines, but today saw no scheduled court activity or filings.

State Case Highlights

Next Hearing: New York Supreme Court Justice Gregory Carro is set to hear motions on September 16, 2025, including the defence’s challenges to evidence obtained in Pennsylvania and to the state terrorism enhancement.
Discovery Disputes: Defence counsel has argued the prosecution’s rolling disclosures remain incomplete, particularly regarding Altoona police search-and-seizure paperwork and the alleged “manifesto” and “ghost gun.” Carro has warned prosecutors to complete production by the next conference or face sanctions.

Federal Case Highlights

Death-Penalty Motion Deadline: In federal court, Mangione’s attorneys must file their motion challenging the constitutionality of the death penalty by September 19, 2025, under the timetable set by U.S. District Judge Margaret Garnett.
Indictment Status: A grand-jury indictment has been returned, but pretrial motions on admissibility and dual-sovereignty challenges remain pending.

Looking Ahead

September 16, 2025: State motion hearing before Justice Carro, where the judge may rule on evidence suppression and the terrorism count.
September 19, 2025: Deadline to file the federal death-penalty motion in U.S. District Court.
Trial Dates: No trial dates have been set; both courts have indicated trials will likely occur in 2026, with the state case tentatively proceeding before the federal capital trial.

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