"Do you really want to live in a society that executes children?"
Do you believe in a society that pities someone that violently murders an infant child with his fists, feet and 2x4 with no remorse when finished?
Age is inconsequential. The kid is monster. At the very least he would deserve exactly what he dished out.
Then would you be willing to be the executioner of such children?
And how would you do it?
What is the age limit?
And lastly, what is your definition of a child?