Investigators found the note in the wallet of 27-year-old shooter Shane Tamura who police said opened fire inside of 345 Park Avenue.

Shane Tamura is suspected of shooting four people in Midtown Manhattan, where the NFL offices are. A note he left references the NFL and CTE.

The 27-year-old man who shot and killed four people at a Midtown office building on Monday carried a note in his pocket, ...

Shane Tamura, who police said shot and killed four people in Manhattan, claims he had chronic traumatic encephalopathy.

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

The frantic mom of mass shooter Shane Tamura had repeatedly called 911 on her mentally ill son in the years before he shot up ...

Maniac Shane Tamura sprayed nearly 50 bullets during his Midtown massacre — as he shot dead four people, including an NYPD officer, according to police and sources. The deranged gunman sprayed most of ...

Brain experts said it could take weeks to learn whether Shane Tamura, the gunman who killed four people in Manhattan, had CTE.

Shane Tamura, the 27-year-old gunman who killed four people including a police officer and himself inside a Manhattan skyscraper on Monday, said he was grappling with the progressive brain disease ...

CTE is defined as a progressive neurodegenerative disease that causes brain damage similar to what’s seen in patients with ...

New details are emerging about the gunman who opened fire inside the NFL’s Midtown Manhattan headquarters last week, killing four people, before taking his own life.

Shane Tamura — who fatally shot four people at a Midtown East office building — said in a suicide note he believed he suffered from CTE and requested his brain be studied.