There is one thing I don't get it:

He is just a 25-year-old kid/student, I mean, how much money could he have? It is highly unlikely that he "lost" any money in the stock market. From his blog in Beijing, I can see his mind is distorted by money which is not uncommon in China now. I am sure we will see more details in the comming days, this is a just a tragedy and isolated incident, we wil get over it.