"Name a mass shooting that occurred before 1968."
Actually, to be fair...
Charles Whitman, the Texas Tower mass murderer, did his killing in August 1966.
"And I think everyone has ignored that you can do tremendous damage w/o a gun."
Good point...when the news first reported the VA Tech incident, I thought it may have been a terrorist. There have been arrests of some people in rural Virginia on suspician of setting up terrorist training camps (sorry, no idea how those turned out).
Cho was insane...but he wasn't stupid even if his writing was deranged. That Engineering building could have been hit by a van loaded with ammonium nitate and diesel (Oklahoma City bomb materials).