Two teams of detectives were sent to Las Vegas to execute a search warrant on the shooter's home and investigate the weapons used in the attack. Investigators discovered that parts of the automatic weapon had been purchased by someone else, raising questions about potential assistance in the crime.

Shane Tamura, the shooter behind the deadly rampage in Midtown Manhattan,​ was apparently targeting NFL offices, NYC Mayor Eric Adams says.

A three-page note was found in the wallet of the shooting suspect who opened fire in a midtown Manhattan office building, killing four people, including an NYPD officer.

The shooting took place at a skyscraper that's home to NFL headquarters and Blackstone, one of the world’s largest investment firms, as well as other tenants.

NYPD officials are heading to Las Vegas to investigate the gunman who killed four people in a Midtown Manhattan skyscraper.

New York City Mayor Eric Adams said on "Morning Joe" on MSNBC there is belief Tamura may have been targeting the NFL office in the building.

Investigators believe Shane Tamura, of Las Vegas, was trying to get up to the NFL offices after shooting several people in the lobby on Monday but entered the wrong elevator bank, Mayor Eric Adams said in interviews.

Follow along for live updates with the New York City shooting, where police investigate motive after five people, including the gunman, are killed in Monday shooting