Criminal cases of primary school students

Students A and B had an argument while eating in the canteen, so they agreed to take it out on themselves with their good friends. They agreed to meet in the playground at noon. After meeting, classmate A and classmate B quarreled, and the quarrel became more and more fierce. Seeing this situation, my good friend helped and fought. Classmate A's good friend Classmate C picked up a brick and threw it at Classmate B .. Classmate B had a serious brain injury. Seeing this situation, classmate A and his good friend ran away. Finally, classmate A and classmate C were investigated for criminal responsibility for betrayal. Because they are minors, they are suspended from school until the end of their studies. Classmate A was sentenced to 30% responsibility, and Classmate C was sentenced to 70% responsibility. Classmate A was sentenced to four years in prison, and Classmate C was sentenced to 10 years in prison.