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.

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 ...

NEW YORK (AP) — A man who killed four people at a Manhattan office building bought the rifle he used in the attack and the ...

Investigators believe Shane Tamura, of Las Vegas, was trying to get to the NFL offices after shooting several people Monday ...

A 29-year-old man was arrested and charged with attempted murder for setting a Virginia city councilman on fire on Wednesday, in what authorities are saying was an apparent personal attack.

The attack on a seemingly secure building has rattled workers and prompted managers to examine whether they are adequately ...

"It was heartbreaking, shock, still in disbelief," said Walter Roby, the former assistant football coach at Granada Hills ...

Authorities have now identified all four killed in Monday night's mass shooting inside a Midtown Manhattan skyscraper. The ...

NEW YORK -- A 27-year-old man wearing body armor and carrying an M4 assault rifle shot and killed four people, including ...

The killing of four people including a police officer in a Midtown Manhattan office building rattled a city where mass ...

Senators turned their attention Wednesday to securing U.S. access to critical minerals in Africa, an increasingly urgent ...