In the strange, two-hour hiatus that interrupted his murderous rampage, the Virginia Tech gunman went to the post office and mailed NBC news a package containing photos and videos of him delivering a snarling, profanity-laced tirade about rich “brats” and their “hedonistic needs”.

“You had a hundred billion chances and ways to have avoided today,” 23-year-old Cho Seung-hui says. “But you decided to spill my blood. You forced me into a corner and gave me only one option. The decision was yours. Now you have blood on your hands that will never wash off.”

Watch it via AP here .