Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the ...

Wesley LePatner, 43, was among the four people killed by a gunman who stormed the Park Avenue building where she worked on ...

Sebije Nelovic always felt safe at 345 Park Avenue. For nearly three decades, she cleaned the ritzy Manhattan skyscraper in ...

The funeral will be held Thursday for the police officer who was one of four people killed in Monday's mass shooting at a ...

NYPD Chief John Chell describes Midtown Manhattan office shooting as mayhem after gunman Shane Tamura killed four people, ...

The gunman who killed four people, including an NYPD officer, inside a Manhattan office building Monday evening left a note ...

New York City police detectives searched a studio apartment in Las Vegas that belonged to the suspected gunman in Monday's ...

A man stalked through a Manhattan office tower firing a rifle, killing four people, including a New York City police officer, ...

The man who killed four people at a Manhattan office building bought his AR-15-style rifle and getaway car from his Las Vegas ...

NYC mayoral candidate, Zohran Mamdani, faced criticism from Andrew Cuomo over past anti-police comments after mass shooting ...

Here's how NFL players, coaches and executives reacted to a mass shooting at the league's office building in Manhattan: ...

Legendary broadcaster and journalist Bob Costas joined NewsNation's "CUOMO" Tuesday to discuss how social media impacts the ...