Can't this terrorism just stop?

I have written this in the light of the deadly terrorist attack that took place in "Army Public School and College, Peshawar (Pakistan). The terrorists kill people everyday. They have exceeded to such a limit as to kill innocent school going children. Isn't that just so Much to boil your blood??? Did the children do some mistake? Were they mistakenly mistaken somewhere? Anywhere? Just if anyone could tell me. I assure you a NO. Then why this hard-heartedness?

I try my best to stop my tears from flowing whenever I read or see anything related to the attack. I feel it so much when I see that they were students of my age, students of my siblings' age, students of my nephews and nieces' age. I just wish I could go there and console their mothers. I feel to light up the world again. I feel to go and shake the lifeless bodies of my innocent brothers and sisters and tell them "Look, your parents are here to take you. Please wake up." But nothing can be done now, nothing can be reversed. Those parents hoping that their child hadn't gone to school that day, hoping that their child could get alive again; I feel it so much.....

Today, just a single boy is left who belongs to grade ninth of that school. The reason; he got late for school. How could he bear the bereavement of all his class fellows and friends? He spent the whole day attending the funerals of his friends......

Now that those who have survived, they have to shape their future. They have to stand up against all oddities. I know it is tough; it is tough to walk from the darkness of despair and sorrow into the light of hope after seeing all this happening before their own eyes. But do we have a choice???

This has to stop. Can't this just stop????