McCormack had flown for the company for five years and had obtained certification as a flight instructor in 2018.
The helicopter flew around Battery Park on the southern tip of Manhattan and up the west side of the island, police said. He'd worked at East Clinton Volunteer Fire Department, located in Dutchess County, New York, since 1994.
Helicopters are often used for transportation and sight-seeing over Manhattan.
In addition to BNP Paribas, the AXA Equitable Center, built in 1985 houses offices for corporate tenants such as law firms Willkie Farr & Gallagher and Sidley Austin, and investment manager New Mountain Capital. The building does not have a helipad.
Linden Airport Director Paul Dudley confirmed that Mr McCormack was hired to fly for the helicopter's owner, Daniele Bodini, who he said commuted between the city and upstate NY. The fire that broke out after the shatter became rapid contained.
The building, the AXA Equitable Centre, was evacuated after the crash. Only the roof of the building was damaged by the crash.
The governor was quoted by local media as saying the helicopter appeared to have tried to make an emergency landing on the roof.
There were no passengers in the helicopter when it hit the 54-storey skyscraper. "People in the building said they felt the building shake".
The East Clinton Volunteer Fire Department posted on Facebook that McCormack's "technical knowledge and ability to command an emergency were exceptional". The NYPD confirmed the hard landing on the roof of 787 Seventh Avenue; it wasn't clear why the chopper would have tried to land there, nor was it clear who owned the chopper.
The weather in NY was particularly rainy and foggy on Monday.
It was midday when pilot Timothy McCormack was flying solo through half-mile visibility in poor weather conditions, an eyewitness taking note of the chopper's erratic maneuvering.
Cuomo noted how the accident could be worrisome to New Yorkers in the aftermath of 9/11.
"There is no indication that this was an act of terror and there is no ongoing threat to New York City based on the information we have right now", Mayor Bill De Blasio said in a briefing shortly after the crash. "In checklist soon as you hear an airplane hit a constructing, I specialise in my solutions goes the effect every Unique Yorker's solutions goes", Cuomo mentioned.