Gregory Castillo Vorquez was found suffering stab wounds in Tiverton Road shortly after 4.55am on January 13.
Emergency services, including London’s Air Ambulance, had been alerted to reports of a fight in the road.
The 36-year-old father-of-two was treated for his injuries but died at the scene.
His family are being supported by police.
A significant police presence was seen in the area, with multiple police cars pictured parked with their blue lights visible.
Officers arrested a 20-year-old man at the scene on suspicion of murder.
Three others, including two other men aged 20 and a 23-year-old woman, were arrested a short time later nearby, also on suspicion of murder.
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They remain in custody at this time.
According to an eyewitness on an estate close to the scene of the incident, police conducted two raids on addresses.
A post mortem examination has been scheduled to take place for January 16.
