Run, hide and fight is what retired NYPD Detective Phil Grimaldi says people should do if they find themselves in an active ...

Part of the gun used by a Las Vegas man to kill four people last night in a Midtown Manhattan office building is under investigation as being provided by an associate. NBC News National Law ...

Investigators plan to question a man who supplied parts for a gun used in the shooting at a Manhattan office building that ...

This isn’t the first time buildings have re-evaluated their security measures — and it likely won’t be the last.

The man who shot four people dead with an assault-style rifle inside a Midtown Manhattan skyscraper was carrying a "suicide ...

The 27-year-old man who shot and killed four people at a Midtown office building on Monday carried a note in his pocket ...

The fallen officer was part of a growing immigrant community whose members have joined the NYPD in large numbers.

Investigators said Shane Tamura, a Las Vegas casino worker, was carrying a handwritten note in his wallet that claimed he ...

A gunman who killed four people inside a Manhattan office tower blamed his mental health problems on the National Football ...

Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police ...