An 18-year-old school pupil was killed by a single stab wound to the neck Sunday after an argument with a student from another school. The incident occurred during a break between examination periods at the Salah Al-Deen Secondary School when 15-year-old S.J. confronted his victim, S.A., prompting an argument that ended with a single stab wound to the latter's neck and his being rushed to hospital. Police arrested S.J., who is a pupil at Al-Yarmuk Intermediate School, after being alerted by staff at King Khaled General Hospital in Hafr Al