I was in the whole process of 6.4 and one of our students died in the morning of 6.4, and I saw a dead body of one student at Beijing Institute of Tecnology.
I particpated some of the demonstration, but I was not very interested in it since I am more interested in my own study and work.
In my mind, 6.4 is a tragedy for all Chinese. Hope we can learn a heavy lesson from it.
