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.

Mayor Eric Adams on X: "Tonight, our city is reeling and four innocent families are mourning, including the family of NYPD Officer Didarul Islam, who was killed at 345 Park Avenue. He represented the best of New York City, an immigrant from Bangladesh who put on a uniform to protect and serve us all."