Timeline
One defendant, three separate prosecutions: federal court in Manhattan (SDNY), New York State, and Pennsylvania. This page lists every dated development in the case file, newest first, each linked to the court record or report behind it. New to the case? Start from the earliest entry; legal terms are explained in the glossary.
- Jun 29 2026Federal (SDNY) Latest
The federal trial was adjourned to January 2027
At a June 29, 2026 conference, Judge Margaret Garnett set jury selection to begin January 5, 2027, with opening statements January 25, 2027, and entered a pretrial schedule running through December 2026.
View unofficial copy · CourtListener federal docket - Jun 18 2026New York
The defense withdrew notice of a possible psychiatric defense
On June 17, 2026 the court disclosed that the defense had filed notice of a possible extreme-emotional-disturbance defense — a filing sealed since September 2025 — and ordered it unsealed. The defense withdrew the notice the next day.
Read the news report - Jun 3 2026New York
A state hearing was closed to the public
The June 3, 2026 proceeding was sealed at the defense's request, and the court declined to explain the closure over news organizations' objections. A transcript unsealed later that month showed the discussion concerned a then-sealed defense filing.
Read the news report - May 18 2026New York
A judge ruled on which evidence could be used at the state trial
The May 18, 2026 decision suppressed some items from the backpack search during the Altoona arrest and declined to suppress others, including the firearm and notebook recovered in a later inventory search.
Read the official record · official, New York State courts - Apr 1 2026New York
An April 1, 2026 order moved the state trial to September 8, 2026
By a brief April 1, 2026 order, Justice Gregory Carro adjourned the trial from its earlier June 8 date; the defense had requested the adjournment.
Read the news report - Feb 27 2026Federal (SDNY)
Federal prosecutors declined to appeal, ending the death-penalty question
After the January 30, 2026 dismissal, the government told the court on February 27, 2026 that it would not appeal, and a March 3, 2026 order noted the case was no longer capital. The remaining counts carried a maximum of life in prison without parole.
View unofficial copy · CourtListener federal docket - Jan 30 2026Federal (SDNY)
The federal court dismissed counts three and four
In two January 30, 2026 opinions, the court dismissed the two counts that had carried death-penalty eligibility — holding that stalking is not a "crime of violence" — and declined to suppress the backpack evidence from the Altoona arrest.
Read the official record · official, U.S. District Court, SDNY - Oct 15 2025Pennsylvania
The Pennsylvania case was put on hold
In October 2025 the Blair County court found Mangione unavailable to appear while held in New York and dismissed the pending hearing requests without prejudice; the docket showed no further hearings after that.
Read the official record · official, Pennsylvania courts - Sep 16 2025New York
A judge dismissed the two terrorism-linked murder counts
The September 16, 2025 decision dismissed counts one and two, which had charged the killing as an act of terrorism. Nine counts, including second-degree murder, were unaffected.
Read the official record · official, New York State courts - Apr 1 2025Federal (SDNY)
On April 1, 2025, the Justice Department directed prosecutors to seek the death penalty
The directive attached to the federal murder-through-use-of-a-firearm count. A January 30, 2026 ruling later dismissed that count, and the government did not appeal.
Read the official record · official, U.S. Attorney, SDNY - Dec 19 2024Federal (SDNY)
Federal prosecutors brought their own charges
The U.S. Attorney in Manhattan announced federal stalking and firearm-related charges, opening a second track alongside the New York case.
Read the official record · official, U.S. Attorney, SDNY - Dec 17 2024New York
The Manhattan DA announced a murder indictment
An eleven-count New York indictment, including murder and weapons charges, opened the state prosecution.
Read the official record · official, Manhattan District Attorney - Dec 9 2024Pennsylvania
Pennsylvania filed the first charges after the Altoona arrest
The December 9, 2024 arrest in Altoona produced the earliest court records in the case and opened the Pennsylvania prosecution.
Read the official record · official, Pennsylvania courts