Well I understand. It's all a question of instinct, feelings and self control.
I find it perfectly normal things like that happen. What I don't find normal though, is that we're not burning the refugees camps with the refugees in them for "accumulation of frustration for seeing our society, children and women rape every day by your kind".
So why aren't there cases like this all over the world? Why are you defending such obvious crimes like these? You can't justify everything.