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 ...

NYC gunman chased and fired at maid on 33rd floor before she was able to get away - The maid escaped after taking a different ...

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 ...

The Park Avenue building where a gunman killed four people Monday is fortified more heavily than most. Concrete planters line ...

Jon Ferrer was working late Monday evening, reviewing tax returns and trying to get a head start on the week. The KPMG senior ...

What began as a typical Monday for New Yorkers soon turned into a day that none of them would have expected. At 345 Park Avenue, Manhattan office workers ...

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 ...