Video captures terrifying moment of NYC explosion

A closed-circuit camera captured Saturday night's explosion in New York City that injured 29 people. 
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The footage was captured by a camera at Orangetheory Fitness, at 124 W. 23rd St. in Manhattan's Chelsea neighborhood, just a few doors down from where the explosive device detonated at 131 W. 23rd St. 
The video shows multiple views of the explosion taking place and the chaos that ensues, including people