An extreme case of Middle School Rage

I was surfing the net, and I found this disturbing article about the killing of a gay student in a middle school in California. After reading just the first section, there is one huge thing wrong with the picture; the student was killed in the back of a computer lab at school. How does this happen? How do teachers or other students not notice something like a gun on a student? I'm sure it's possible to not see it, as it can be hidden, but the idea that no one even reported of hearing that the killer was planning it. The whole thing is just very crazy to me. But the real reason I wrote this blog was to discuss when classes on tolerating differences should be implemented in school. In elementary schools students are told to "play nice with others", but in middle school, that doesn't really even carry through. Students, especially in middle school, are going through so many hormonal changes and finding who they are, so one would think that helping kids understand differences should be part of any middle school cuuriculum. It's not, though. There are several cases of bullying all over in schools, but a case as severe as the one above causes a huge concern as to what we, as teachers, unknowingly allow to happen. The bullying the student above received seemed to have been dealt with by the student well as he responded by flirting with the boys to diffuse the situation. That is apparently what set the other student off. I don't know what to even think about the whole thing, but I do know that when I become a teacher, I hope I can help students in my classes understand that we are all different, and that's okay. I just hope that everyone (teachers, students, administration, parents, and community members) can help our younger students understand that differences are okay, and we need to all tolerate everyone. Tolerating doesn't mean that you have to be a best friend with someone, it just means you have to let them live their life and not do anything to inflict pain.