Two teenagers have been cleared of involvement in the fatal stabbing of Yousef Makki in a Cheshire street.
Yousef, 17, was stabbed to death with a flick knife after a row with a friend in the Cheshire village of Hale Barns in March.
At Manchester Crown Court, a jury declared Boy A not guilty of his murder, and not guilty of an alternative charge of manslaughter.
A second boy, known as Boy B, was found not guilty of perverting the course of justice and not guilty of conspiracy to rob.
Neither defendants can be named because they are under 18.
Yousef had won a scholarship to the prestigious Manchester Grammar School and wanted to be a heart surgeon.