Signage for Blackstone is seen as a New York City Police (NYPD) officer stands outside the 345 Park Avenue building, the scene of last night's deadly shootings in Midtown Manhattan in New York on July 29, 2025. A man who killed four people, then committed suicide in a New York skyscraper, may have been targeting the NFL offices there because he blamed the American football league for brain injuries he said he suffered, Mayor Eric Adams said Tuesday. The revelation that the killer, identified as 27-year-old Shane Tamura, carried a note referring to the degenerative brain disease chronic traumatic encephalopathy (CTE), offered the first possible motive for the shootings late Monday that brought central Manhattan to a standstill. (Photo by TIMOTHY A. CLARY / AFP) (Photo by TIMOTHY A. CLARY/AFP via Getty Images)
ABC Reporter Josh Margolin updates NYC shooting gunman and victims killed
Photo: TIMOTHY A. CLARY / AFP / Getty Images