The shooter behind a deadly rampage inside an office building in Midtown Manhattan on Monday evening was apparently targeting NFL offices there, New York City Mayor Eric Adams said Tuesday morning.Law enforcement sources say investigators recovered a three-page rambling note from gunman Shane Tamura's wallet in which he referenced the brain disease CTE.

Study my brain please,” read a note left by the gunman accused of killing four people in a building that houses NFL’s headquarters

New York City gunman reportedly targeted the NFL headquarters in Manhattan, but took the wrong elevator during his deadly terroristic attack.