Fares Maatou was fatally stabbed on Friday (credit: Met Police)
Fares Maatou was attacked in Barking Road, near Ordnance Road, shortly before 4pm on Friday, 23 April.
Officers and paramedics found him suffering from stab wounds.
Despite their best efforts, he was pronounced dead at 4.30pm.
A post-mortem examination held at East Ham Mortuary gave cause of death as stab injuries.
Fares is believed to have been in possession of an e-scooter when he was attacked.
Three teenagers were arrested on Friday, 23 April in connection with the incident.
One of the teenagers, aged 14, has since been charged with murder and possession of an offensive weapon.
He will appear in custody at Stratford Youth Court on Monday, 26 April.
The other two boys, both aged 15, have been bailed to a date in late May.
A fourth arrest was made on Saturday, 24 April. The 15-year-old boy was arrested on suspicion of murder and remains in police custody.
DCI Perry Benton, Specialist Crime, said: “Every piece of information could be vital, so I continue to appeal for anyone who knows anything and any witnesses who have yet to speak with police to please come forward.
“I have assured Fares’s family of my total commitment to bringing to justice those responsible for this senseless killing.
“They will be supported by specialist officers at every stage of what will be a terrible ordeal for them in the weeks, months and years ahead.
“This remains a fast-moving investigation and there will be further developments.”
Anyone with information is asked to call the incident room on 020 8345 1570 or to contact Crimestoppers anonymously.
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