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NEW YORK (AP) — A man stalked through a Manhattan office tower firing a rifle Monday, killing four people, including a New ...

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

Graham Gano stayed late at the New York Giants’ practice facility Monday watching news coverage of a gunman killing four people at a Manhattan office building that includes the NFL headquarters. “I ...

Didarul Islam, 36, was fatally shot during Monday’s Midtown Manhattan shooting. Sources say the off-duty NYPD officer was ...

After a gunman opened fire in a New York City office building and killed four people, experts share strategies for workplaces to implement to mitigate acts of violence.

Exclusive video shows SWAT teams executing a search warrant at the Las Vegas apartment of Shane Tamura, the man behind Monday's deadly shooting in New York City that left four people dead.

Then officials say the suspect then got into the elevator and headed to the 33rd floor, the headquarters of Rudin Management.

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

A New York City police officer who was among the four people shot and killed by a gunman during a rampage at a Manhattan ...

Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police officer in New York City for over three years. He was an immigrant from ...

A robotic dog was used to enter the Las Vegas home of the suspected New York gunman, who is accused of killing four people and himself in a shooting inside a Ma ...