FILE PHOTO: Oversized football helmets surround the convention center as the city hosts Super Bowl LIIV in Miami, Florida, U.S., January 31, 2020. REUTERS/Mike Blake/File Photo
NEW YORK (Reuters) -A gunman who opened fire in a Midtown Manhattan office building on Monday believed he suffered a brain injury that he blamed on the National Football League, New York's mayor said, thrusting the issue of chronic traumatic encephalopathy back into headlines this week.
According to police, Shane Tamura, a 27-year-old former high school football player with a history of mental illness, killed four people with an assault rifle in a Park Avenue office tower that houses NFL headquarters before shooting himself in the chest.
