The New York City shooter who sought to attack NFL offices said he had a degenerative brain disease, called chronic traumatic ...

The mother of the man who killed four people at a Manhattan office tower home to the NFL told 911 dispatchers during a 2022 ...

A 911 call cited by CNN reveals the fear Shane Tamura's mother expressed about the safety of her son as well as herself ...

The progressive brain disease can be caused by repeated trauma to the head and has caused serious health problems for ...

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The man who killed four people in the New York City skyscraper that is home to NFL headquarters carried a note blaming the ...

A note found on the man who opened fire at a New York City building is raising serious questions about chronic traumatic ...

After killing four and taking his own life, Shane Tamura — a former football player at two L.A.-area high schools — left ...

CTE cannot be diagnosed until the patient has died and their brain examined. But doctors said there are symptoms such as ...

NPR's A Martinez speaks with Chris Nowinski, co-founder and CEO of the Concussion Legacy Foundation, about the brain disease chronic traumatic encephalopathy, or CTE.