An active shooter incident occurred in Midtown Manhattan, New York, officials said. Here's what to know about 345 Park Ave.

Five people were shot and four killed by the 27-year-old gunman Shane Tamura, when he opened fire inside an office building at 345 Park Ave. on Monday evening. Among the victims were a Police Officer,

The office building, located at 345 Park Avenue, houses some of the country’s top financial firms, including Blackstone, and the National Football League. According to the company's website, Blackstone stands as the world’s largest alternative asset manager, managing over $1 trillion in assets under management.