Shane Tamura , the suspect in the July shooting at a New York City office building that houses the NFL 's headquarters, was posthumously diagnosed with chronic traumatic encephalopathy (CTE), the New York City Officer of the Chief Medical Examiner confirmed in a statement obtained by ESPN on Friday (September 26).

Tamura, 27, who shot and killed four people before killing himself at 345 Park Ave., was previously reported to have asked that his brain be studied for CTE, a disease widely suspected to be caused by repeated blows to the head, which has been linked to the league and the sport of football as a whole, prior to the incident. The references to the NFL in the three-page note found on Tamura were described as being vague by sources with knowledge of the situation, ABC Ne

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