A heroic moment within the Virginia Tech tragedy was the way in which Prof. Liviu Librescu held the door shut against the killer so his students could escape out the window. Librescu was killed by a shot through the door, but his class was saved.
Prof. Librescu had survived the Nazis in Romania during the Second World War, and then the communists who succeeded them. Ironically, he was killed, in effect, by the libertarians in his adopted land of the free.
Among the 30 people murdered in Norris Hall, five were professors. None abandoned their posts. At least one, Liviu Librescu, sacrificed all for his students. As a professor myself and a member of the academic community, I honor them.