The 14-year-old was stabbed four times in the back near his home in Holloway within an hour of dirty looks being exchanged by two groups of youths.

He was chased by a gang and left dying in the street in June last year.

The 16-year-old, Joseph Chin, was last month found guilty of murder by an Old Bailey jury.

Kevron Williams, 17, who was convicted of attempting to cause grievous bodily harm, was given four years in youth detention.

Aftab Jafferjee QC, prosecuting, said teenagers showing off in front of their friends and being prepared to use violence is now a scourge of cities and towns.

He said: "This is such a case, which leads from dirty looks to death in one hour."

Judge Brian Barker, the Common Serjeant of London, said: "The public have every right to be concerned about the increase growth of this sort of violence.

"It is a tragedy that this sort of triviality caused such a young man to lose his life and has caused enduring heartache to his friends and family."



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