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Gunman who killed 4 at Manhattan office building was targeting NFL headquarters, mayor says

MIDTOWN MANHATTAN, NEW YORK CITY, JUL 30 – Shane Tamura, who blamed chronic traumatic encephalopathy for his actions, killed five including an NYPD officer and a Blackstone executive before dying by suicide, police said.

  • On Monday evening, Shane Devon Tamura, the shooter, killed five people at 345 Park Avenue before dying by suicide on the 33rd floor.
  • Authorities say the shooter wrote that CTE drove his actions, and Tamura blamed his mental illness on CTE, accusing the NFL of hiding brain injury risks.
  • Authorities reported the shooter’s note included claims that football gave him CTE and caused him to drink antifreeze; Goodell said the building was nearly cleared after the attack.
  • Following the shooting, Goodell sent staff a memo offering the option to work remotely or take the day off in response to the incident.
  • Authorities continue to investigate Tamura's motive, and there will be an increased security presence at 345 Park Avenue in the coming days and weeks.
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Lean Left

Inside 345 Park Avenue when a mass killer arrived

The glittering skyscraper where hundreds work became the scene of New York City’s deadliest gun attack in 25 years when a man entered the lobby and started shooting.

·Atlanta, United States
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KPAX broke the news in on Monday, July 28, 2025.
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