Tamura killed four and badly wounded another before shooting himself in the chest.In the note, Tamura claimed to have ...

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

CTE, caused by repeated head trauma, has prompted a reckoning at all levels of football. The gunman believed he was suffering ...

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

The Midtown Manhattan shooter speculated that the condition was a cause of his mental illness. But drawing that conclusion is ...

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

Chronic traumatic encephalopathy, or CTE, is a degenerative brain disease caused by repeated head traumas. Contact sports ...

According to one study, 40 percent of young athletes who died by suicide had CTE. At present, it's only possible to test for ...

Chronic traumatic encephalopathy is a degenerative brain disease caused by repeated head trauma. Here's why it's so dangerous ...

The New York City gunman who shot and killed multiple people on Tuesday claimed he had CTE. He was targeting multiple NFL ...

Young athletes (ages 6–14) in tackle football experience vastly more head impacts — up to 15 times more — and 23 times more ...

New York City's Office of Chief Medical Examiner told USA TODAY Sports it would examine the brain of NYC shooter Shane Tamura.