From memory, that makes two "near misses" since Columbine. There was one in Santa Clara, CA a few years back where a kid was ready to go to De Anza College and just shoot random people. Where he screwed up was, when he took his film to the local drug store to develop the pics of his stash of guns and him posing proudly next to them. The girl at the counter saw the pics, got scared and called the police.

I am just glad that these people were stupid enough to "brag" about their intentions and get caught BEFORE anything really went down.