A third person has been charged with the murder of 17-year-old Jodie Chesney.
Svenson Ong-a-kwie, an 18-year-old from Romford, will appear at Barkingside Magistrates’ Court on Thursday.
Jodie was stabbed in a park in Harold Hill, east London, on 1 March as she was listening to music with friends.
Manuel Petrovic, a 20-year-old from Romford, and a 16-year-old boy who cannot be named, are due to go on trial for murder in September.
A 50-year-old man and a 38-year-old woman – both from Dagenham – and a 17-year-old boy were released under investigation after being arrested on suspicion of assisting an offender.
A post-mortem gave the cause of Jodie’s death as trauma and haemorrhage.
The Met said their murder inquiry is ongoing and appealed to anyone with information to come forward.
:: Anyone with information should call the HMCC Incident Room on 020 8345 3775, Tweet @MetCC or call Crimestoppers anonymously on 0800 555 111.