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

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

Four people were killed and a fifth was injured in a mass shooting at a Midtown Manhattan office building on Monday.

Family and friends gathered at Central Synagogue to mourn Wesley LePatner, one of four victims killed in Manhattan office ...

Shane Tamura killed four people at a Manhattan office building Monday, including Blackstone executive Wesley Lepatner and New ...

A lone gunman walked into a midtown Manhattan office building Monday and opened fire, killing four people, including an NYPD ...

The funeral will be held Thursday for the police officer who was one of four people killed in Monday's mass shooting at a ...

Five people—including the suspected perpetrator Devon Tamura and NYPD officer Didarul Islam—were left dead at an office ...

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

A New York City police officer and three other people were killed in a shooting in Midtown Manhattan on Monday evening, ...

The deadly shooting at a New York City high-rise office building Monday night raises new questions for CEOs and businesses as ...