Investigators believe Shane Tamura, of Las Vegas, was trying to get to the NFL offices after shooting several people Monday in the building’s lobby but accidentally entered the wrong set of elevator banks,

Multiple casualties as gunman opened fire in the lobby of the midtown Manhattan building on Park Avenue that is home to the Blackstone investment firm and other corporations before moving to other floors.

National Football League commissioner Roger Goodell said one employee was shot and "seriously injured" in a shooting at a midtown Manhattan office building.

New York City Mayor Eric Adams said Tuesday that the 27-year-old gunman who killed four people and injured another in a shooting at 345 Park Avenue on Monday was trying to target the NFL's headquarters, which are located in that building, but inadvertently took the wrong elevator.

The gunman who killed four people, including an NYPD officer, reportedly had a grievance against the NFL and blamed football for issues with CTE.

Didarul Islam, 36, was shot dead while providing security for the site on Park Avenue. Officials said he had migrated to the US from Bangladesh, had two children and was expecting a third with his pregnant wife. He died "a hero", they said.

The gunman who killed an NYPD officer and three other people in a Midtown building on Monday evening was carrying a note that offered clues into his possible motive, sources told The Post.

Work was winding down at 345 Park Avenue on Monday when a man strode across the public plaza just outside the Midtown Manhattan tower with an assault rifle in his hand.