It is absolutely important to show the full story; the violence was not limited to the murderer Goldstein. Some of his victims were also burtally violent, with no regard for the sanctity of human life just like Goldstein. Killing him for self defense is necessary, but their response went well beyond that, and it's a documented fact. That is not to say the murderer and the victim are equally bad. No judgement is given in this article, it is left for the reader to decide after reading the facts. Feel free to add more details on Goldstein's violent actions. However, if