Depends on if you are referring to sane in the actual definition or perspective. I absolutely believe there are sane people that commit murder. While they may be emotionally unbalanced they are still sane.<quoted text>Question for you? Do you honestly believe anyone who commits murder is sane at the time that they commit murder? I don't. I don't believe a sane person would lose control that way and murder someone. Slap them, yes, murder, no.
While I am not professionally qualified to make a diagnoses I think this kid was sane. He was too well prepared in committing this act. He was "sane" enough to know what would happen once apprehended by the authorities or he wouldn't have seen any reason to kill himself. My opinion is he was emotionally unbalanced.
Just my opinion of the difference between the definition of not being sane and being emotionally unbalanced.