What we Know About the Mass Shooting in New York City

On Monday evening, July 28, a gunman opened fire inside a Midtown Manhattan office building, killing four people—including an off-duty NYPD officer—and critically injuring another before taking his own life. The deadly attack occurred at 345 Park Avenue, a high-rise that houses the NFL’s corporate offices.

Officials, including NYC Mayor Eric Adams (at podium) and NYC police department, held a press conference outlining the tragic shooting event.

The suspect, identified as Shane Devon Tamura, 27, of Las Vegas, Nevada, arrived in New York after a cross-country drive. Dressed in tactical gear and carrying an M4-style rifle, Tamura parked his BMW outside the building around 6:30 p.m. and walked into the lobby. He immediately began firing, killing the off-duty officer working as a security guard, as well as two civilians near the entrance and elevators.

Tamura then rode the elevator to the 33rd floor, where he shot and killed another individual before fatally shooting himself. Responding officers discovered a cache of ammunition, a revolver, and a three-page note on Tamura that referenced CTE (chronic traumatic encephalopathy) and grievances involving the NFL—suggesting a possible motive tied to mental health and football-related brain trauma.

Authorities say Tamura had no known ties to New York City or the building, and acted alone. He had a concealed carry permit from Nevada and a history of mental health holds, but no serious criminal record. The victims’ identities, aside from the NYPD officer—Didarul Islam, a married father of two—have not yet been released.

The FBI and NYPD continue to investigate the motive and how Tamura legally transported weapons across state lines.

Suspect: Shane Devon Tamura

• Age & residence: 27‑year‑old male, most recently living in Las Vegas, Nevada.

• Identified as the shooter by NYPD and confirmed dead of an apparent self‑inflicted gunshot wound on the 33rd floor of 345 Park Avenue.

• Firearms permit: Held a concealed carry permit issued in Nevada, and had an expired private investigator work card.

• Vehicle & route: Drove cross-country from Las Vegas—through Colorado on July 26, Nebraska and Iowa on July 27, then into New Jersey around 4:24 p.m. on July 28—before arriving in NYC.

• Believed to be a lone actor; no known ties to NYC or the building.

Mental health, note & possible motive

• Tamura had a documented mental health history in Nevada, including two crisis holds in 2022 and 2024, but no major criminal record.

• A three‑page note found on him referenced CTE (chronic traumatic encephalopathy)—a brain disease linked to repeated head trauma—and mentioned the NFL. The building he targeted houses the NFL headquarters.

• Investigators continue to explore whether his perceived CTE and mental state motivated the attack, although no confirmed motive has been established.

How the attack unfolded

• Shortly before 6:30 p.m. local time, surveillance video captured Tamura exiting a double‑parked black BMW on Park Avenue (between 51st & 52nd Streets), holding an M4 rifle.

• He entered 345 Park Avenue, turned right, and immediately opened fire—killing an NYPD officer working security and several civilians in the lobby.

• He shot a security guard and another person at the elevator banks, then took an elevator to the 33rd floor and killed a fourth victim before shooting himself in the chest.

• At least one additional person was critically injured and remains hospitalized in critical condition; several others sustained minor injuries fleeing the scene.

Victims

• Among the four people killed, one was NYPD Officer Didarul Islam, a 36‑year‑old immigrant from Bangladesh who had served for 3½ years. He was married with two young sons, and his wife is pregnant with their third child.

• The other victims were two males and one female civilian. Their names have not been released pending family notification.

Summary

Key Detail	Element
Name	Shane Devon Tamura
Age & Residence	27, Las Vegas (Nevada)
Weapon & Gear	M4 rifle, body armor, revolver, ammunition, backpack, prescribed medication
Mental Health	Documented history, crisis holds in 2022 and 2024
Note	Claimed CTE, referenced NFL
Travel Route	Cross‑country drive arriving in NYC by late afternoon July 28, 2025
Casualties	4 killed (including NYPD Officer Islam), 1 critically injured
Death	Self‑inflicted gunshot wound
Motive	Under investigation; potential link between CTE and choice of target

The investigation is ongoing, including motive analysis and forensic review of Tamura’s note and medical background.