Q: What is the law regarding the Jews who murdered the Arab teen? Is it permissible to take revenge on the Arabs for the murder of the three Jewish teens?
A: 1. A person is considered innocent until proven guilty. 2. It is certainly forbidden to murder one person on account of another person's transgression. In general, it is forbidden to murder a non-Jew. After all, ours souls were at Mt. Sinai and heard: Do not murder. In any case, it is the terrorists who should be punished, not civilians. 3. Punishing terrorists must not be via the act of individuals, but rather through the decision of the entire Nation, i.e. via Tzahal, with the Government's permission, since the consequences are paid by the entire Nation.