A 16-year-old boy was charged on Saturday, with the murder and robbery of a 25-year-old man.
Wilhem Mendes was killed in Albert Place, on December 22 while being robbed.
The 16-year-old is the fourth person to be charged, two 15-year-old boys and another 16-year-old boy have also been charged with the murder and robbery of Mr Mendes.
They has also been charged for the attempted robbery of two other men on the morning of December 22.
He will appear in custody at Highbury Corner Magistrates' Court today.
The other three have been remanded in custody and are next due to appear at the Old Bailey on 28 March.
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