Note: This video originally aired on Jul 30, 2025. NEW YORK CITY (WPIX) – The man who shot and killed four people inside Manhattan's 345 Park Ave. in July had Chronic Traumatic Encephalopathy, also known as CTE, according to the New York City Medical Examiner. Gunman Shane Tamura, 27, targeted the NFL headquarters in the Park Avenue building on July 28 with a three-page suicide note blaming the agency for his injury and calling for there to be a study on his brain for CTE.

Tamura shot five people, killing four of them, including NYPD Detective Didarul Islam, Blackstone executive Wesley LePatner, security guard Aland Etienne and Rudin employee Julia Hyman. Gunman who killed 4 in NYC was trying to get to NFL offices,claimed to have CTE: Officials He then turned the gun on himself in the R

See Full Page