'My father blocked the doorway with his body'

We'll never know how many lives Virginia Tech professor Liviu Librescu saved yesterday.

Librescu, a Holocaust survivor, interposed his seventy-five year old body between the gunman and the students in his charge, allowing some to escape before he was killed.

From Fox News:

"My father blocked the doorway with his body and asked the students to flee," Joe Librescu said in a telephone interview from his home outside of Tel Aviv. "Students started opening windows and jumping out."