After a gunman opened fire in a New York City office building and killed four people, experts expressed some concerns ...

The suspect who has died has been identified by police as a 27-year-old man from Las Vegas called Shane Devon Tamura.

The gunman who killed four people at an office building in New York City on Monday evening left his home in Las Vegas, Nevada ...

MIDTOWN, Manhattan (WABC) -- Investigators are working to piece together what led to the deadly mass shooting at a Manhattan office building that left four people dead and one injured as officials ...

A shooter killed four people at a Midtown Manhattan office building Monday before turning the gun on himself, police say.

Four people died after a gunman opened fire in a Manhattan office building, and security footage showed the shooter calmly ...

Four people — including two Jewish women — were killed during a mass shooting at 345 Park Avenue in Midtown Manhattan on ...

Four victims, including an NYPD officer and a Blackstone executive, were killed in an NYC shooting at 345 Park Avenue.

Someone with an AR-15 intent on killing anything he saw last night, that’s hard to deal with,” said the NYPD’s John Chell.

The alleged gunman at a shooting rampage in a midtown Manhattan office building was identified as 27-year-old Shane Tamura, ...