All right, I apologize if that somehow offended you, it wasnt my intention.
Going back to the question, one reason for you to not see women shooting up school is because men are more likely than females to develop negative attributions of blame that are external in nature, that is: ‘The cause … of my problems is someone else or some force outside of me’. And this translates into anger and hostility toward others.”
While women are more likely to develop negative attributions of blame that are internal in nature, that is: ‘The cause of my problems is some failing of my own: I didn’t try hard enough, I’m not good enough.
You can see that in the way that a lot of murders committed by women are intimate or passional, that includes the methods, normally it doesnt involve a gun.