During evening rush hour in New York City on Monday, a man calmly walked into a Park Avenue office building lobby and killed ...

Blackstone told employees on Friday it will reopen its New York headquarters on August 4, a week after shuttering it in the ...

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

The New York City office building at 345 Park Avenue where a deadly shooting occurred serves is the headquarters of ...

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

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

The shooter, identified as 27-year-old Shane Tamura of Las Vegas, left a suicide note suggesting he had CTE and was targeting ...

Four people died after a gunman opened fire in a Manhattan office building, and security footage showed the shooter calmly ...

The mass shooting at a Manhattan office building raises new concerns for business leaders looking to secure their staff and ...

Police officers in New York City responded to reports of an active shooter in a midtown Manhattan building that houses ...

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

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