Kamari Johnson: Boy was stabbed over moped deal, Old Bailey hears

When the pair met in Carnarvon Drive, Hayes, to carry out the deal, the defendant was “scammed” by Kamari, the court heard.

Mr Smith said that, after taking the defendant’s money, Kamari “went back on his side of the deal and simply rode off”.

“No doubt that left (the defendant) feeling pretty embarrassed and pretty angry,” he said.

“But whatever Mr Johnson had done, you may feel, he didn’t deserve what happened next.”

The court heard that the defendant headed to Kamari’s house, where he stabbed him through the chest with a “machete style knife”.

Although the 16-year-old managed to flee on the moped, chased by the defendant, he collapsed minutes later and died in the street.

The defendant’s father brought him to Hayes Police Station the following day to hand himself in.

While the defence team had claimed he “acted in self-defence at all times”, Mr Smith asked the jury to consider why he was running after Kamari fleeing on the moped.

The trial, which is expected to last three weeks, continues.