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Investigation Underway After Manhattan Gunman Blamed CTE and NFL

Shane Tamura, a 27-year-old former high school football player, shot five people and killed four in a Manhattan office building housing NFL offices before fatally shooting himself.
Tamura left a three-page letter claiming he suffered from a degenerative brain condition linked to repeated head injuries and accused the NFL of hiding the risks to protect its financial interests.
CTE, diagnosable only postmortem, has been found in over 100 former NFL players and is associated with symptoms like memory loss, mood swings, aggression, and motor dysfunction as explained by neurosurgeon Aury Nagy.
Tamura’s note and attack have intensified calls to examine the link between CTE and violent crime, while investigators continue to explore his motives and the district attorney declined to bring charges.
The incident highlights ongoing concerns about player safety in contact sports, the NFL’s role in addressing CTE risks, and the challenge of attributing violent acts based solely on brain pathology.

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