Four people were killed and a fifth was injured in a mass shooting at a Midtown Manhattan office building on Monday.

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

Part of the gun used by a Las Vegas man to kill four people last night in a Midtown Manhattan office building is under investigation as being provided by an associate. NBC News National Law ...

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

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

The New York City Medical Examiner determined a cause and manner of death for the gunman who killed four people inside a midtown Manhattan office tower before turning the gun on himself. Shane Tamura ...

New photos provided to FOX 5 NY by police sources show the inside of the vehicle driven by Shane Tamura, who killed four ...

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