A man opened fire Monday inside a Midtown Manhattan high-rise that houses the NFL headquarters, killing four people and injuring at least one league employee before taking his own life, authorities said.
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The suspect, identified as 27-year-old Shane Tamura of Las Vegas, entered 345 Park Avenue and began firing on multiple individuals across several floors of the building. Tamura was later found dead on the 33rd floor from an apparent self-inflicted gunshot wound, according to the New York City Police Department.
Among those killed was 36-year-old Didarul Islam, an off-duty NYPD officer, officials confirmed. Authorities have not yet released the identities of the other victims.
NFL Commissioner Roger Goodell notified staff in an internal memo Monday night that one male league employee had been seriously injured. Dianna Russini of The Athletic identified the employee as Craig Clementi, a member of the league's finance department. He was hospitalized and listed instable condition as of Monday evening.
"One of our employees was seriously injured in this attack," Goodell wrote. "He is currently in the hospital and in stable condition. NFL staff are at the hospital and we are supporting his family. We believe that all of our employees are otherwise safe and accounted for, and the building has nearly been cleared."
Authorities said Tamura was a former high school football standout in California and carried a three-page handwritten note in his pocket at the time of the incident.
The note, described by police as "rambling," referenced the NFL and included a request for Tamura's brain to be studied for signs of chronic traumatic encephalopathy (CTE), a degenerative brain disease that has been found in athletes with a history of repetitive head trauma.
NFL Commissioner Roger Goodell sent the attached message to all league employees after one was seriously injured in Monday night’s attack: pic.twitter.com/EgSDK55z8N
— Adam Schefter (@AdamSchefter) July 29, 2025
CTE can only be definitively diagnosed after death. Tamura's note also alluded to struggles with mental health, which investigators say were documented in his background. The precise motive for the attack remains under investigation.
The 345 Park Avenue building, located in the heart of Manhattan's business district, is home to several offices, including the NFL's main administrative headquarters. Law enforcement responded swiftly to reports of an active threat, and the building was evacuated and secured within hours.
Authorities said they are continuing to review surveillance footage, interview witnesses, and piece together Tamura's movements in the days leading up to the incident.
The NFL said it would provide counseling and support to employees impacted by the events.
