Police body-cam footage released for the first time shows the shocking moments after a talented grammar school pupil had been fatally stabbed by his rich pal in an affluent suburb.
It reveals tearful former public schoolboy Joshua Molnar, then 17, lying to cops after he had stabbed his friend Yousef Makki, also 17, through the heart, telling officers the culprits had sped off in a silver hatcback.
He is captured telling an officer: "We've come sprinting over and the guy was just coughing up blood."
