Virginia Tech leaders are refusing to discuss or explain e-mails that show at least one building was locked down April 16, 2007, while top officials withheld information that two students had been killed and the shooter was at large.
As shooter made his way to more victims, some school officials locked down their offices -- even before a campuswide alert was issued about his first two killings.
Some Virginia Tech officials put their buildings on lockdown before Seung Hui Cho locked the exits to Norris Hall and gunned down 30 students and staff on April 16, 2007.
Virginia Tech is looking to turn a calamity into an opportunity to make college campuses and other public places safer -- with some help from political friends in Richmond and Washington.