The teenage boy who executed eight of his classmates and a security guard in Belgrade had molotov cocktails in his bag and may have planned the heinous pre-meditated slaughter for months.
But despite the mountain of evidence against 13-year-old Kosta Kecmanović, a student at the Vladislav Ribnikar school in an upmarket pocket of Serbia's capital, Belgrade, he could avoid jail time because the age of criminal responsibility in the country is 14.
In Serbia, the law states that the boy is not subject to the same criminal proceedings as an adult.