A survivor of the Virginia Tech massacre has been describing how a colleague died to protect others. Although badly injured, graduate student Waleed Shalaan distracted gunman Cho Seung-Hui to save another person from his bullets. Waleed saved another student's life.The surviving student, who wishes to remain anonymous, told of Waleed's heroics through an email to his supervisor. He describes how he was left uninjured after Cho's initial round of shots. Meanwhile, Waleed had been wounded but was still alive. However, when Cho later returned to the classroom to inspect for signs of life among his victims, the surviving student struggled...