A 17-year-old has been charged with the murder of a youth worker outside Brixton Tube station in south London.
Nathan Foster died in hospital
Nathan Foster, 18, was found by police with bullet wounds in Marcus Garvey Way on Friday night.
He was with a group of 10 or 11 youths when they were approached by a man on a motorbike who opened fire.
The 17-year-old youth, who cannot be named because of his age, is due to appear before West London Magistrates' Court on Saturday.
A boy, 14, has been released on police bail.
Detectives said the motive for Mr Foster's killing was unclear but there were reports the shooting was over a piece of jewellery.
Mr Foster died in hospital later on Friday evening.
His murder brings the number of teenagers killed in London this year to 17.