As ABC News said, they even made him practice suicide.
I (and many other japanese) suspect he was finally pushed down and was deprived of the right to live at the age of only 13 , and even if he was not pushd down and actually commited suicide, they drove him die with bullying (which i think should be called rather than violence or torture) for just their pleasure.

The most unbelievable is that their parents, executives of The Board of Education in Shiga Prefecture, the principal and the other theachers in their Oujiyama Junior High School, and other powerful people are trying to hide the facts.
They try not to publish any survey results, and they even threatened other students who tried to ensure what's happened in the school , saying "what's this?".

I hate all of them and this evil distinct people should be condemned.