Fate of their souls ?

Would it be strange for me to hope they found happiness after their death - and not just them, but their victims are in paradise too. Why? Cause they killed for that reason, they weren't happy and they were just kids who wanted to be happy and feel loved and accepted like everybody else.

I know If i were to lash out at people or did mistakes because I'm in a bad place or I feel like giving up, the sole reason is simply that I tried to be happy but I couldn't find it.