Someone noticed the man outside a second floor side entrance of District 36 night club on West 36th street.
The victim had blood around his mouth.
Police responding to a 911 call found him unconscious and unresponsive.
He was pronounced dead at Bellevue Hospital.
The man has been identified as 27-year old Michael Lin of Queens.
The cause of death is still not known.
Detectives are trying to figure out if Lin was assaulted.
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