Employees at firms including Blackstone and KPMG hid and set up barricades during the gunman’s rampage.

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

After Monday night’s shooting at 345 Park Ave., the Midtown corridor was seemingly back to business as usual Wednesday ...

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

The attack took place on Monday evening at 345 Park Avenue, a commercial skyscraper in Midtown Manhattan that houses offices ...

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the ...

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

The gunman who killed four people, including an NYPD officer, inside a Manhattan office building Monday evening left a note ...

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

A Blackstone employee who was on their way to the lobby of the building to pick up food on Monday evening fled to safety ...

The gunman is believed to have acted alone and investigators have yet to determine a possible motive. Read more at ...

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