The Virginia Tech shooting showed that the university has learned important lessons since the 2007 massacre. Virginia Tech quickly sent alerts campuswide via Twitter, e-mail, and text.
The incident prompted a lockdown of the Virginia Tech campus on Thursday and revived memories of a gunman's 2007 rampage that left 33 people dead in one of the worst shooting incidents in US history.
The campus shooting prompted officials to lock down the Virginia Tech campus for hours Thursday while police and SWAT teams searched the school, the scene in 2007 of the deadliest mass shooting in modern US history.
Virginia Tech: The US Department of Education issued a report Thursday rejecting the university's defense of its conduct and confirming that the school violated the Clery Act, which requires that students and employees be notified of on-campus threats.