The gunfire erupted around 7 a.m.at 645 West 59th Street, near 12th Avenue, the police said.
The Daily Mail cited witnesses as saying the victim was a foreman who was shot by another construction worker.
Photo Police officers investigating the fatal shooting of a man at a construction project at 645 West 59th Street on Thursday.
Foreman Christopher Sayers was shot in the head on the 37th floor of the Manhattan building Thursday morning.
Police were also stationed all around the building with their guns drawn.
The New York Daily News said Perry came to the building unexpectedly and handed his tools to a former colleague once he reached Sayers and other workers on the 37th floor. "He calls me "Old G" because I'm an old man, then he goes about his business". "I check his pulse, and it didn't seem like he had a pulse". "Right now, we're understanding that he was sacked two days ago", NYPD Deputy Chief Christopher McCormack said.
"Face down, blood everywhere, brains on the floors", he said.
Police said the suspect was found dead from what appeared to be a self-inflicted gunshot wound on the fifth floor. The 37-year-old formean had been shot in the head and was pronounced dead at the scene. "So I didn't want to move him or anything, so I just left him". He got fired two days ago.
Police said the suspect was sacked by the foreman two days ago. "He's a quiet guy". He never gave nobody a hard time.
The suspect, who is from Plainview, New York, was sacked for insubordination by Sayers on Monday when he became outraged after being told to redo a wall construction.
Police are still trying to determine how Perry got inside the development.