Michael Charles Gregory died of injuries suffered in the mid-morning brawl on busy Commercial Drive.
The 59-year-old victim was rushed to hospital but could not be revived.
A 27-year-old man was taken into custody a few hours after the fight, although charges were not laid and he has been released.
However officers say the investigation remains very active and a suspect has been identified.
The case is Vancouver's second homicide of 2013.