Man who killed four people in New York City building containing NFL headquarters had CTE

The New York City medical examiner's office has confirmed that Shane Tamura, the 27-year-old man who killed four people and himself in a Manhattan office building in July, had chronic traumatic encephalopathy (CTE) - a degenerative brain disease caused by repeated head trauma. Tamura, who played football in high school, had "unambiguous diagnostic evidence" of low-stage CTE, according to the medical examiner. CTE is most commonly associated with American football players, particularly those who have reached the NFL level. The findings provide insight into the potential factors that may have contributed to Tamura's violent actions, highlighting the need for continued research and awareness surrounding the long-term effects of head injuries in sports.
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