Initial reports based on an interview with the pilot suggested a passenger's personal bag may have hit the emergency fuel shutoff button accidentally before the crash, though investigators had not yet officially announced a cause.
The five passengers on the helicopter were all "tightly harnessed", so emergency fire and police responders had to cut the harnesses to remove them, Nigro said.
"It took a while for the divers to get these people out", he said.
Jonny Rolling, hired by Hill to work at Hill's club, says, "Tristan didn't just casually support me and my music; he made a personal and emotional investment in me that he shared with everyone he knew. He had an excellent voice", said Adrian Adams, a 60-year-old Upper East Side resident who attends the church.More news: Federer wins, Djokovic out at Indian Wells
Cadigan was an intern at media organization Business Insider until a few weeks ago, according to a company spokesman.
The two friends went to Texas' Bishop Lynch High School together and graduated in 2010.
A helicopter is hoisted by crane from the East River onto a barge, Monday in NY. One of the men behind him flashes him a thumbs-up.
The fifth victim was Daniel Thompson, 34, according to police.
Investgators from the US National Transport Safety Board are expected on the scene early on Monday. "It's important to differentiate that the flight yesterday (Sunday) was not operating as a traditional sight-seeing flight, so they had a different tether in place for their passengers", said John Del Giorno, Eyewitness News helicopter pilot.
Witnesses on a waterfront esplanade near where the aircraft went down said the helicopter was flying noisily, then suddenly dropped into the water and quickly submerged. The pilot quickly surfaced, however, clinging to a flotation device as a tugboat and then police boats approached. "Engine failure. We've got an engine failure over the East River". "It was under water".More news: Boots Riley's "Sorry to Bother You" Looks Insanely Funny from First Trailer
The company offers both private charters and sightseeing tours for tourists.
CBS2 asked Liberty Helicopters where the tool was located, but they didn't respond.
As we reported, the chopper crashed Sunday and slammed down into the river, killing all 5 passengers. Three subsequent maintenance violations in 2011 and 2012 didn't result in any fines.
US Sen. Chuck Schumer of NY is expected to call for the FAA to suspend Liberty Helicopters' FAA operating certificate until their safety record and this crash are fully assessed, according to a press release from his office.
Witnesses described seeing at least one person emerge from the helicopter and wave his hands for help.More news: Ryan Coogler Pens Heartfelt Letter to Ava DuVernay
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