Shomiah McKenzie, 18, of Lewisham and Cody Godfrey, 18, of Isle of Dogs were charged on Friday, 9 August with murder.
They were both also charged with possession of Class C with intent to supply. McKenzie was also further charged with possession of an offensive weapon.
His family were notified and continues to be supported by specialist officers.
A third male, a 16-year-old boy who was arrested on suspicion of assisting an offender is currently released under investigation.