Jason Romeo, 20, was fatally stabbed outside a property in Bodney Road on February 18.
Officers from the Metropolitan Police were called at 5.59pm and have been investigating his death since.
On February 21 three men, including a 22-year-old and two 21-year-olds, were arrested on suspicion of murder.
They remain in custody at this stage.
Det Supt Kelly Allen, leading the investigation, said: “I would like to thank the public for their support following an appeal issued yesterday to identify three men.
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“This investigation is progressing quickly and our officers are working tirelessly to get justice for Jason and his family.
“We are continuing to appeal to anyone who may have information which could support this investigation to come forward.
“Specifically, around two men, we believe were in the area at the time of Jason’s death who officers are looking to identify. Anyone with any information is asked to contact us.”
