The gunman who killed four people at a Manhattan office building before killing himself claimed in a note to have a brain disease linked to contact sports and was trying to target the National Football League's (NFL) headquarters but took the wrong lift, officials said on Tuesday.
Investigators believe Shane Tamura, of Las Vegas, was trying to get up to the NFL offices after shooting several people in the lobby of the building at 345 Park Avenue on Monday but entered the wrong elevator, Mayor Eric Adams said.
