A teenage cyclist was chased and gunned down by youths on a high-performance electric dirt bike in a killing linked to gang rivalry, a court has heard.
The alleged gunmen, Emmanuel Popoola and Tayvon Etefia, now both 18, are accused of his murder.
Opening their trial on Wednesday, prosecutor Louise Oakley KC said the killing took place against a background of violent incidents arising from rivalry between two Enfield gangs, the 3×3 gang, and the Get Money Gang (GMG).
Mr Harker had left his Enfield home shortly after 8.30am and rode his bicycle along the A10, Great Cambridge Road.
Two males on a Sur-Ron electric dirt bike appeared to follow him and the victim began to “ride hard” as if to get away, Ms Oakley said.
Etefia was the rider in control of the handles and Popoola was sitting right behind him as his passenger on the electric bike, it was alleged.
Ms Oakley said: “The speed of the Sur-Ron bike that Emmanuel Popoola and Tayvon Etefia were on meant they gained ground on Keanu Harker very quickly and, as they rode alongside him, Emmanuel Popoola shot him.
“He fired three shots from a very short distance. Two of them struck Keanu Harker in the head and chest. Tayvon Etefia did not flinch.
“Keanu Harker immediately fell off his bicycle on to the road. He was fatally injured but somehow managed to crawl a short distance into the front garden of a residential address just off the Great Cambridge Road.
“Emmanuel Popoola and Tayvon did not stop. They continued to make good their escape.”
Alerted by the gunshots, witnesses found Mr Harker’s bicycle lying in the road covered in blood.
They followed a blood trail which led them to the sticky teenager slumped in a doorway, bleeding from wounds to his head and chest.
Emergency services were at the scene within minutes and Mr Harker was taken to the Royal London Hospital where he died just before 11pm.
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After the shooting, Popoola and Etefia allegedly rode to Enfield Town Park where they dumped the Sur-Ron bike and other items.
They were allegedly driven away in a Ford Focus by Eliezer Mbaki, 25.
In the hours and days that followed, a 17-year-old youth and Anais King, 19, allegedly provided further assistance.
It is alleged King had helped Popoola by booking and paying for a ticket for him to travel on the Eurostar from London to Paris on June 28 2025, two days after the shooting.
Popoola and Etefia, both from Enfield, deny murder and possessing a self-loading pistol with intent to endanger life.
Mbaki, from Tottenham, north London, King, from Enfield, and the youth, who cannot be identified for legal reasons, deny perverting the course of justice.
The Old Bailey trial continues.