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

Follow along for live updates on the New York City shooting, where police investigate motive after five people, including the ...

Manhattan high-rise killer says he had an important message. These days, even mass murder has become politicized.

Wesley LePatner, an executive at Blackstone, and NYPD officer Didarul Islam were two of the victims killed in a shooting Monday in Manhattan.

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

Cameras at 345 Park Avenue flagged the New York gunman as a threat before Monday’s mass shooting, raising concerns about ...

Shane Tamura said he had CTE. His claim, which is unproven, has again put a spotlight on the NFL's troubling history with its ...

A note found in the gunman's wallet was critical of the NFL and mentioned CTE. The 27-year-old wrote, “Study my brain please.

Cameras at 345 Park Avenue flagged an approaching gunman on Monday as a potential threat that required immediate attention, ...

Conservatives are bizarrely claiming a deadly shooting in New York City is the fault of the Democratic mayoral nominee.

"Assault weapons" are banned, and the Red Flag Law, which temporarily removes firearms from people deemed a danger, has been strengthened.

Five people, including a New York City police officer, died in a shooting in Manhattan. Suspected gunman Shane Devon Tamura ...