[Brandon]

when you feel rejected by people as a whole, you feel powerless. violence is the way in which this kid felt he could regain some control. he wanted to be judge, jury, and executioner. i don't think he necessarily wanted or expected people to agree with his views, since he was probably smart enough to know that he'd be seen as a monster regardless of what his manifesto said. but in the end, he was more keen on the idea of going down as a legendary monster than as a rejected nobody.