Prophet (Upon Whom Be Peace) said: "A Muslim is the brother of another Muslim. He does not oppress him, nor does he leave him at the mercy of others." (Sahih Muslim Book 032, Number 6219).
The Hadith above advise us not to oppress our fellow brothers and sisters in Islam but also fellow human beings. We cannot partake in the torture and killing of fellow country men and women. Doing acts of human right abuse makes you lower than wild beast. Have respect for human dignity.