Changes in report spell out notification delays during 2007 Virginia Tech siege

From The New York Times: During the worst campus shooting spree in American history, Virginia Tech officials locked down some administrative offices and warned their own families more than an hour and a half before the rest of the campus was alerted, according to revisions made in the state’s official report on the rampage. The revelations come more than two and a half years after the gunman, Seung-Hui Cho, went on a rampage that killed 32 students and faculty members before taking his own life. The changes to the report provide a more detailed picture of the mistakes made by university officials in handling the emergency.