The owner of a private security business on Park Avenue said he questions how a shooter got so far into a Midtown office ...

Roger Goodell was emotional on Thursday as he publicly addressed the deadly shooting that took place inside 345 Park Avenue, ...

New York City is mourning NYPD Officer Didarul Islam and three other people killed in Monday's shooting inside an office ...

Police have lined up four rows deep to pay respects to a fellow officer who was among the victims of a gunman's rampage at a ...

Goodell stayed in New York to attend the funeral of Didarul Islam, the NYPD officer who was one of four people killed earlier ...

The NYPD continues to work with investigators across the country to learn more about the gunman in Monday's deadly Midtown ...

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

The New York City office building that was the site of a mass shooting Monday had significant security measures in place.

As for security, badges and sign-in lists for visitors became standard fare in New York office buildings after the Sept. 11 ...

The Park Avenue office building where Monday's shooting occurred remains closed, as Midtown workers expressed anxieties about ...

Investigators are examining why the gunman who killed four people before taking his own life at a New York City office tower ...

A vigil will also be held Friday night for NYPD Officer Didarul Islam so the community can come together in mourning. CBS ...