The deadly shooting at a New York City high-rise office building Monday night raises new questions for CEOs and businesses as ...

Four people were killed on Monday when a man, identified by police as Shane Tamura, walked into the lobby of 345 Park Avenue ...

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

New York City police detectives searched the Las Vegas studio apartment of the suspected gunman in Monday's mass shooting at ...

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

Five people—including the suspected perpetrator Devon Tamura and NYPD officer Didarul Islam—were left dead at an office ...

(CNN) — A supervisor at the Las Vegas casino where Shane Devon Tamura worked legally purchased the gun used in the Midtown ...

A gunman who killed four people at a Manhattan office building before killing himself claimed in a note to have a brain ...

An off-duty New York City police officer and an executive at an investment firm were among four people killed by a gunman at a Manhattan office tower. Officer Didarul Islam ...