Gunman Shane Tamura shot four people, including a New York City police officer, and injured one other on Monday.
Video shows Tamura armed with a rifle storming across an office building plaza and opening fire before taking his own life.
The shooting took place inside an office building in Manhattan, New York City, home to the NFL and investment firm Blackstone headquarters. It is the same area of Manhattan where the chief executive of UnitedHealthcare was shot last year. Police are yet to confirm a motive for the incident and why that location was targeted.
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