Two men appeared in court yesterday where they were charged with murdering Mohammed Abdi.
Ahmed Hussain Ahmed, 27, and Cadil Huseen, 22, both from London, appeared separately at Edinburgh Sheriff Court, where they made no plea.
Another man, Muhamud Muhamud, 29, from London, was also charged with murder on Thursday.
Both Ahmed and Muhamud also appeared in court last week charged with allegedly disturbing the breach of the peace during the incident.
Mr Abdi, the son of an Edinburgh mosque leader, was found in the street after suffering gunshot wounds during an attack on 26 May. He died later in hospital.
Mr Abdi, 25, from Leith, was discovered in the Willowbrae area of the city next to a people carrier.
His death followed a high-speed car chase across the city. He was rushed to hospital, but died from his injuries.
A second man was taken to hospital with less serious injuries after being hurt in the same attack.
Police are investigating whether Mr Abdi died as a result of rivalry between two gangs.
They are looking into the possibility the incident might have been drug-related.
Detectives say they have begun a “cross-border investigation” and are liaising with other forces in England.
Police Scotland said they were looking for at least six men in connection with Mr Abdi’s death.
They have also issued an appeal for information about two cars – a blue Volkswagen Sharan and a silver or grey hatchback – which they believe may be linked to the murder.
Sheriff Roderick MacLeod yesterday remanded both Huseen and Ahmed in custody.
Muhamud was remanded in custody on Thursday.
A Crown Office spokesman said the case had been continued for further examination and that both men would reappear in court on the charge at a later date.