Former L.A.-area football player who killed four in a Manhattan office building had CTE

"Shane Tamura, the gunman who killed four people and himself in a New York City office building in July, had CTE, a degenerative brain disease linked to head injuries sustained in football and other contact sports. The New York medical examiner "found unambiguous diagnostic evidence of Chronic Traumatic Encephalopathy, also known as CTE, in the brain tissue of the decedent," according to a statement. "The findings correspond with the classification of low-stage CTE, according to current consensus criteria.""

"Tamura drove this summer from Nevada - where he worked as a security guard at the Horseshoe Las Vegas hotel and casino - to New York, leaving behind a three-page suicide note stating that he believed he had CTE and that his motive was anger at the NFL for making profit a priority over players' brain safety. "Football gave me CTE," Tamura reportedly wrote. "Study my brain please.""

Shane Tamura, 27, was a former high school football player who worked as a security guard in Las Vegas and drove to New York in the summer. He entered the office tower that houses NFL headquarters and ended up on the wrong floor. He killed four people and wounded one NFL employee before killing himself. Tamura left a three-page suicide note saying he believed he had CTE and blaming the NFL for prioritizing profit over player brain safety. The New York medical examiner reported unambiguous diagnostic evidence of low-stage CTE in his brain tissue.

Read at Los Angeles Times