A 19-year-old man will appear in court today charged with the murders of Aaron Carriere and Josiah Manful in Leytonstone.
Devonte Campbell, of no fixed abode, was arrested on Saturday.
Police confirmed that he was the last of 12 people arrested in connection with the murders.
The other 11 have all been bailed.
Campbell will appear at Thames Magistrates’ Court today.
Aaron Carriere, 21, and Josiah Manful, 20, were both found stabbed to death in a car in Montague Road at around 1am on March 1.