Robert Avrech pointed out something that's truly fascinating. The bill mentioned in the previous post about allowing people to carry guns on campus that didn't pass? It was apparently pushed for because...* that's how the last rampage on a Virginia campus was stopped, in 2002.
This just makes this horrific story that much sadder.
* - Note: I'm assuming that it's the same bill.
UPDATE: Not as sure it's the same bill, but the stopped rampage is mentioned in some articles about the bill.