The 27 -year -old man who allegedly shot and killed four people in a Midtown office building on Monday wore a note in his pocket claiming that he suffered from CTE and asking that his brain be studied, police sources told ABC News.
The note also made references to the police.
CTE, or chronic traumatic encephalopathy, is a degenerative brain disease linked to repeated blows in the head and brain shocks. CTE can only be diagnosed through a cerebral autopsy after death.
The suspect, Shane Tamura, who the police said he has a documented mental health history, played high school football.
A police officer and a civilian were shot in the center of Manhattan on Monday by a suspect who fled to an offices building, police sources told ABC News.
ABC News
It is alleged that Tamura shot and killed four people, including a police officer out of service that works in security in an office building in Centro de Manhattan, authorities said during a press conference on Monday night.
Police have not detailed a potential reason for murders.
The NFL commissioner Roger Goodell sent a message to the staff, saying that one of the league employees was also injured in the attack.
New York Police officers and other police officers expect the ambulance transfer of the killed officer of the New York Diar Islam police, who was killed during a massive shooting in the center of Manhattan, at the New York Medical Center/Weill Cornell in New York City, USA, July 29, 2025.
Bing Guan/Reuters
The three -page note was described by sources as divagants. It continued references to the NFL that the sources described as vague.
The shooting took place on Monday in 345 Park Ave., which houses, among other companies, the NFL headquarters.
This is a development story. Consult the updates again.
Darren Reynolds of ABC News contributed to this report.
