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Virginia Tech, in our prayers.
I talked to my father today as he is a professor at another university back home in Pennsylvania. He had one of the students who was in the classrooms in the VT Engineering building in one of his classes - as this student was an Undergraduate Environmental Engineering student at my father's university. This particular student went on to pursue his graduate degree at VT. He was one of only two survivors in this classroom and he managed to survive by "playing dead." Can you imagine? I can only hope that this is the last time such an event ever happens in the United States, or anywhere for that matter.