Sebije Nelovic, who for 27 years has cleaned the Manhattan office building that was the site of the shooting, was dusting a ...

The man who gunned down four people at a Park Avenue office building left anti-psychotic medication in his Las Vegas ...

The New York City Medical Examiner determined a cause and manner of death for the gunman who killed four people inside a ...

New York police honor fallen officer Didarul Islam with funeral services after he was killed by a gunman in a Midtown office ...

The medical examiner confirmed that Shane Tamura died from a self-inflicted gunshot wound but hasn't yet determined a CTE ...

The man who killed four in a mass shooting at 345 Park Avenue bought the gun from his supervisor at a Las Vegas casino.

Gunman Shane Tamura fired nearly 50 shots Monday during his rampage on a Park Avenue skyscraper, where he killed an NYPD ...

Gunman Shane Tamura fired nearly 50 shots during his rampage on a Park Ave. skyscraper, where he killed an NYPD cop and three ...

An active shooter incident occurred in Midtown Manhattan, New York, officials said. Here's what to know about 345 Park Ave.

The glittering skyscraper where hundreds work became the scene of New York City’s deadliest gun attack in 25 years when a man ...

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