A New York City office building where a gunman killed four people then himself has reopened a week after the deadly shootings ...

Workers returned to 345 Park Ave., on Monday​ under the watchful eyes of NYPD officers and a surplus of security after the ...

The 27-year-old Nevada man left a note at the scene voicing anger that his mental illness may be linked to his having played ...

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

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

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

The gunman accused of killing four people in a Midtown Manhattan office tower bought the AR-15-style rifle used in the attack ...

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the ...

Authorities say the man who killed four people at a Manhattan office building bought the rifle he used in the attack and the ...

The 27-year-old man who shot and killed four people at a Midtown office building on Monday carried a note in his pocket, ...

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

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