Ms Johnson, 27, was shot in the head at a house party in Peckham on May 23. She is in a critical condition in hospital.

Cameron Deriggs, 18, of Bromley Hill, Lewisham has been charged with conspiracy to murder, the Metropolitan police said.

He will appear at Westminster Magistrates’ Court on Saturday.

Police said four other men arrested over the incident have been bailed until late June.

Detectives continue to appeal for anyone with information to come forward.

Witnesses can call police on 101 or Crimestoppers, anonymously, on 0800 555 111 and provide the reference 1172/23MAY.