A New York City police officer and three other people were shot and killed inside a Midtown Manhattan office building on Monday evening by a gunman armed with a high-powered rifle, police confirmed.The suspect,

Officials say a man carrying a rifle killed four people at a New York City office tower. The shooting took place Monday afternoon at a midtown Manhattan office building that houses finance companies and the NFL headquarters.

Four people were killed, including an NYPD officer, and another man was critically injured in a shooting Monday evening inside a New York City skyscraper, which houses the corporate offices of the National Football League and Blackstone.