A third man has been charged over the murder of Patrick Gomes De’Almeida.
Jamaili Calvert, 20, of Ingatestone Road, Croydon has been charged with murder, grievous bodily harm and two counts of robbery, Scotland Yard said.
He was remanded in custody to appear at the Old Bailey on Tuesday, the force added.
Gerald Atkins, 33, of Greyhound Terrace, Streatham, and Leigh Wright, 28 of Whitworth Road, Selhurst, have already been charged with the same offences.
They appeared in custody at Croydon Magistrates’ Court on Thursday and an update on their next court appearance is awaited, said the Metropolitan Police.
Police were called just before 11pm on October 1 to a reported stabbing on London Road outside a block of flats, where they found two men with stab wounds.
Mr De’Almeida died around 25 minutes later at the scene despite the attention of medical staff, while a second man, 33, was taken to hospital with non life-threatening injuries, the force said.