The story you list in Chinese doesn't state the names of the persons involved. It only says two men from Singapore committed this crime. That can be any of the thousands of Singaporeans that visit China. If you were unhappy with this language school why didn't you just quit and move on? To cry over spilled milk is like a baby crying for more candy. Get a life and move on. Many know that there are lots of language schools in China that don't pay on time or otherwise have issues. Go teach in another country and earn your money and spend it in China if this is a place you like. That's my answer.