(ANSA) - BELGRADE, MAY 03 - Kosta K., the 14-year-old author of the massacre in a Belgrade school, had been planning his act for at least a month.
This was stated by the head of the capital's police Veselin Milic.
Speaking at a press conference, Milic added that the boy had a map of the school and a list of schoolmates to be killed.
It was the multiple murderer himself, Milic said, who called the police informing them that he had shot many people, but he did not clarify the reason for the massacre, carried out with a nine-caliber pistol owned by his father.
The boy also had four Molotov cocktails.
(HANDLE).