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The building occupies an entire block and has its own ZIP code. It’s owned by Rudin, one of the oldest real estate firms in New York City.

By Yan Zhuang

The Midtown Manhattan skyscraper where a gunman killed a police officer and shot additional people on Monday afternoon houses several financial firms and other offices, including those of the investment giant Blackstone and the National Football League.

A 44-story tower at 345 Park Avenue, the building is also home to the offices of the accounting and financial advisory firm KPMG, the German investment fund Deutsche Bank, the consulate general of Ireland and the Rudin Management real estate firm.