Officials say a man with a rifle killed an off-duty New York City police officer and three other people before taking his own ...

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

A lone gunman opened fire at a Manhattan office tower that houses the NFL and Blackstone, killing four people.

Fear and confusion were rampant after a gunman shot and killed four people and wounded another in a Midtown Manhattan office tower Monday evening before, authorities said, taking his own life.

Police and paramedics rushed to 345 Park Avenue in Midtown Manhattan, where the gunman, armed with an M4 rifle, fatally shot four people and critically wounded another.

Four people, including a New York Police Department officer, were killed today in Midtown Manhattan, a law enforcement official told CNN. Follow for live updates.