A gunman who killed four people inside a Manhattan office tower blamed his mental health problems on the National Football ...

The 27-year-old man who shot and killed four people at a Midtown office building on Monday carried a note in his pocket, ...

The 27-year-old Nevada man opened fire at a New York City office building, killing at least four people and then himself.

A gunman opened fire inside a Midtown Manhattan skyscraper on Monday, killing four people, including an off-duty NYPD officer ...