There's no lesson to be learned to stop this tragedy happening again if we don't actaully analyse how it happened.
They were ten.
Where did they learn violence from.
Where did they get these ideas from.
One of the killers asked if they had brought the child to hospital to fix him.
I'd rather examine it than just wipe it away with evil.
Of Course some people are too blinded by hate which is the same exact dysfunction that leads to violence.