Littleton's tragedy shook me to the core, as I'm sure it did you. I wanted to wait, and reflect on it, before I said anything here. And what I say, I'm going to keep brief; I think there's been enough said already.
Coincidentally, this summer is my 20-year high school class reunion, and so I was thinking about high school anyway before this happened. Those years are summed up for me in the word "miserable."