One of the four victims was a 36-year-old NYPD officer with 3.5 years on the force; the other three were civilians.

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 ...

High school classmates and a coach remembered Shane Tamura as a talented running back. Recently, though, he was apparently ...

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

Businesses across the U.S. are reevaluating security after a shooting at a New York City office building raised concerns ...

The medical examiner confirmed that Shane Tamura died from a self-inflicted gunshot wound, but has not yet made a ...

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

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 ...