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

The killing of four including a police officer in a Midtown Manhattan office building rattled a city where mass attacks are rare and violent crime has declined.

The Midtown office shooting that killed two real estate professionals has prompted grief—and questions about whether more ...

The New York City office building that was the site of a mass shooting Monday had significant security measures in place.