Two children die in Shanghai primary school knife attact

There are two puiples at an elementary school in Shanghai died on Thursday in a stabbing attack by a man who said he had “lost all hope”, and wanted revenage on society . Both two of the students are study in Shanghai world foregin language primary school. He killed these two little boys and hurt another two people during the students and parents returned to the school. This attack is the lastest in a string of deadly attacks on children in recent years growing social tensions.