A vigil for NYPD Det. Didarul Islam, one of the four victims killed in Monday's Midtown Manhattan office building shooting, ...

There were 23 shell casings and 13 bullet fragments recovered from the lobby of 345 Park Avenue and 24 spent shell casings on ...

Four people were killed and a fifth was injured in a mass shooting at a Midtown Manhattan office building on Monday.

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

A shooting Monday at an office building in New York City that is home to the Blackstone investment firm and the NFL left four ...

Four people were shot and killed in Midtown Manhattan on Monday. The deceased included two males, one female, and one NYPD ...

This is a breaking news story. For latest updates, please go to our live blog. An NYPD officer and at least four other ...

Four people were killed and a fifth was injured in a mass shooting at a Midtown Manhattan office building on Monday. Among ...

Fox News contributor Paul Mauro and former NYPD detective Pat Brosnan discuss the death of NYPD officer Didarul Islam on 'Fox ...

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

Investigators found also found 800 rounds and a 357-caliber handgun in a BMW the shooter drove to the scene, the NYPD said.