A 19-year-old man was arrested on suspicion of murder on the afternoon of Wednesday, 10 February. He has been taken into custody at a London police station.
A 17-year-old male was arrested on suspicion of murder on Tuesday, 9 February. He remains in custody at an east London police station.
Anybody with information that can help the investigation is urged to call police on 101 or tweet @MetCC quoting CAD 5580/06Feb.
Alternatively contact the independent charity Crimestoppers anonymously on 0800 555 111.
A 16-year-old male was also found suffering stab injuries. He was taken to hospital where he remains in a stable condition.
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