US Edition
Expert: NYC Gunman Could Not Have Been Diagnosed with CTE Before Attack
MANHATTAN, NEW YORK CITY, JUL 29 – Shane Devon Tamura blamed NFL for hiding football brain injury risks and left a note citing CTE before killing four people and himself, police said.
- On July 28, 2025, Shane Devon Tamura, a 27-year-old from Las Vegas, opened fire at the NFL’s Manhattan headquarters, resulting in the deaths of four individuals before taking his own life.
- Tamura, a former high school football athlete who never advanced to the NFL, left behind a three-page note claiming he was affected by chronic traumatic encephalopathy and accusing the league of hiding the risks associated with brain injuries.
- He journeyed across the country from Las Vegas to New York, entered a Park Avenue office building, and opened fire in the lobby, injuring a police officer, a security guard, and two employees before taking his own life.
- Studies indicate CTE affects many former football players with symptoms resembling dementia, including impaired impulse control and suicide, and the NFL paid over $1.4 billion to settle concussion-related claims.
- Authorities continue investigating Tamura's motives and are examining his brain during autopsy to determine any CTE presence, while the shooting renewed public discussions on football-related brain injuries and gun control.
17 Articles
17 Articles
Why Getting Answers About CTE Has Been So Difficult
The former football player who fatally shot four people and himself in Midtown Manhattan claimed to have a poorly understood brain disease, putting a renewed focus on the link between head injuries in sports and irreversible brain damage.
NBC Bay Area
NYC shooting suspect showed promise on the football field years before turn to violence
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‘Study my brain,’ NYC gunman wrote in suicide note: ‘Football gave me CTE’
Investigators are looking into whether a Las Vegas man who went on a deadly shooting rampage in Manhattan on Monday was targeting the National Football League after it emerged that the gunman was a Los Angeles high school football player with a documented mental health history.
The NYC gunman left a note to 'study my brain' for CTE. What does that mean?
Shane Tamura, the gunman who killed four people inside a New York office this week before turning the gun on himself, was carrying a handwritten note in his wallet claiming he had CTE. What does that mean?
New York City gunman from Las Vegas claimed to have CTE. What is it?
LAS VEGAS (KLAS) -- The gunman who killed four people in Midtown Manhattan claims in a suicide note that he wanted his brain to be studied for CTE, the degenerative brain disease associated with repeated hits to the head. Chronic Traumatic Encephalopathy, also known as CTE, has been found in former National Football League and National Hockey League players, boxers, and members of the military. Shane Tamura, the Las Vegas man who killed four pe…
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