Didarul Islam, a 36-year-old NYPD officer, was off duty and working a security job when he was fatally shot by a gunman who opened fire at the 345 Park Avenue office building on Monday.

Four people were killed, including an off-duty New York City police officer, when a gunman opened fire in an office tower ...

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

An active shooter incident occurred in Midtown Manhattan, New York, officials said. Here's what to know about 345 Park Ave.

The last killing of such a scale in the city was during a fast-food restaurant robbery in Queens in 2000. Mass murders of ...

A Nevada man recently traveled to New York City, entered a Manhattan building wearing body armor, carrying an M4 rifle, and ...

Police have identified the man who they say entered a Midtown Manhattan office building wearing body armor and opened fire, ...

Investigators are examining why the gunman who killed four people before taking his own life at a New York City office tower ...

New York City Police Officer Didarul Islam, killed in Monday’s mass shooting inside a Park Avenue skyscraper, was mourned at ...