A gunman from Las Vegas shot five people, killing four, including an off-duty New York City police officer, inside a Manhattan skyscraper, before fatally shooting himself, officials confirmed ...

As investigators work to uncover a motive, questions are being raised about how a man with a documented history of mental ...

An off-duty New York City police officer and an executive at an investment firm were among four people killed by a gunman at ...

The 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 died by ...

A gunman opened fire inside a Manhattan office building on Monday night, killing a New York City police officer and three other people. Officials have identified the suspect as 27-year-old Shane ...

A man stalked through a Manhattan office tower firing a rifle, killing four people, including a New York City police officer, ...

NYPD teams descending on Las Vegas in search for gunman’s motive as all four victims identified - Shane Tamura fatally shot ...

Police say a gunman who killed four people in a Manhattan skyscraper before taking his own life claimed to have a brain ...

Ivy League graduate Julia Hyman, 27, was killed in New York Monday after a tragic mix-up by the shooter led him to the wrong ...

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

A degenerative brain disease that has been linked to concussions and other head trauma common in military combat and contact ...