Photo SpecialVirginia Tech Tragedy: The Lives Lost

From the freshman with a "luminous smile" to the hero Holocaust survivor who helped save his students' lives, see the portraits of the victims

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LIVIU LIBRESCU, 75

The Romanian-born aeronautics engineer and Holocaust survivor was hailed a hero after physically barricading his classroom door to allow students time to escape the gunman's bullets. "He had a huge affection for his students and he sacrificed his life for them," Professor Nicolae Serban Tomescu told AP Television News. A professor at VT for 20 years, Librescu is survived by his wife Marlena (left) and two sons who reside in Israel.

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