In Columbine they (police) weren't prepared, and they were crucified. Every agency in the country has learned from that.

They did good. I saw a couple things they need to work at, but they were not crucial things.

It's serious. We need to find ways to keep them focused.

Usually, in school shootings, the bad guys kill themselves, like it happened in Columbine.

Most school shootings, 99 percent, are over in the first two minutes. They don't know what they're really dealing with, and they don't know what to expect. They must assess each person.