Avira, you are a liar and are slandering a tzadik and kadosh who was brutally murdered. Dr Goldstein was not “mentally unstable”, and the Arabs were not “worshipers”, they had a stash of hatchets and knives with which they hacked him to death; that is not what one has at a place of “worship”. They were openly announcing for days that they were going to carry out a massacre, and the army refused to do anything to stop them. The army even warned Dr Goldstein to prepare for multiple casualties. So he did the only thing he could to stop them.
By the way, even according to your sick version how can you say there’s no evidence they were terrorists? Even according to your version, they murdered him after they captured and disarmed him; that is cold-blooded murder, and when Jews have done the same to actual terrorists they have been convicted and imprisoned for it. So that alone makes them terrorists.