In the case of every problem man wants to search its root and is not content until his search succeeds. Geneticists will locate it in the genes inherited from one's forefathers. It would mean that man is helpless in the matter since he cannot control his heredity. Psychologists trace violence to one of the basic Instincts. Environmental scientists blame it on the general atmosphere or circumstances surrounding a human being since his childhood.
Some philosophers attribute it to karmas.
Thus we are confronted with a plethora of views on the subject. If we pause and think for a moment we find that each one of them is partial or one-sided, though none of them can be termed wholly untrue. We must take a holistic view. But even this might not provide the ultimate solution. More serious thinking is needed.