Six years ago Tuesday, the Virginia Tech campus at Blacksburg was the scene of a deadly shooting rampage.
Early Tuesday morning, Virginia Tech cadets did 32 pushups in front of the campus memorial - one for each of the students and faculty killed on April 16th, 2007. Wreaths and flowers were also placed near each memorial stone.
Read: List Of Virginia Tech Shooting Victims
Twenty-seven Virginia Tech students and five teachers were killed in that on-campus shooting. The gunman, 23-year-old Virginia Tech student Seung-Hui Cho, ended the shooting spree when he turned the gun on himself.