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NEW YORK – An electrician working on the 30th floor of a building near the site of a deadly collapse in TriBeCa was recording with his phone when the massive crane tipped forward, crashing down along Worth Street, killing one person and injuring three others.

The collapse was caught on video by an electrician, Glenn Zito, who was filming the lowering of the crane from a high floor in a nearby building when it lost control and crashed into the ground with a loud, sickening thud.

The first report of the fallen crane on Worth Street came in at 8:24 a.m. The collapse happened at the height of the snowy morning commute in lower Manhattan. The 565-foot-long, 330-ton crane also damaged four buildings, including the New York Law School building, as it came crashing down.

David Wichs, 38, of the Upper West Side, was walking down Worth Street when the crane killed him. Three others were injured by the falling debris.

Mayor de Blasio said at a Friday morning press conference that the crane’s operator was trying to bring the boom down to a safe position when the apparatus toppled over.  Police and other city agencies are investigating; it’s not yet clear what caused the collapse.