"why not shoot those who massacre people, instead of shooting innocent people!" Well, it is what they thought they were doing... That is the problem when you take justice in your own hands and made mistake...

By the way, it was impossible in Bosnia to make a difference between civilian and fighters. Every male had to do 2 weeks on the front and 2 weeks at home... It was a CIVIL war, and not a country (Serbia) invading others countries (bosnia and Croatia)... It was far more complexe...