When in jail, Sead says to the police officer that he's born on June 16, 1963. Yet, he's a high school senior (school year 1979-1980), which means that he'd go on to graduate before turning 17 (he would have been only 5 years and 3 months old when beginning his elementary school education, something which wasn't possible in the Yugoslav system - the standard for a person's primary and secondary school education was to start at 7 and end it at 18; turning 6 in late summer and then start going to school that same year would be the most extreme case of an early beginning.