Gunman in NYC Shooting at NFL Headquarters Had CTEShane Tamura, a former high school football player, shot himself and left behind a note that said his motive was anger at the N.F.L.
Source: Gunman in NYC Shooting at NFL Headquarters Had CTE (https://www.nytimes.com/2025/09/26/us/cte-football-tamura-gunman.html)