After every tragedy, we hear the same question. We hear it over and over again. The parents ask it. The grandparents ask it. The children in the school ask it. And we have never received a real answer. We have never received an answer that makes sense, that fits our understanding of the world. Why? Why? Why? I lived through the Columbine tragedy as an adult, with my children at the school. My wife and I asked that same question: Why? But we didn’t leave it as a theoretical or rhetorical question. We tried to find the answer. You can read this and learn, or keep asking the same question and never learn. It has been 22 years since Columbine, and there have been many killings. Isn’t it time to learn the lesson?