God does not work that way.In this life we have choices to be good or evil. If your theory was correct,then we all would be killed along with our children and relatives. BECAUSE we all sin.
Denying that you are a sinner is no way to be at peace with God. Neither is judging others. God will make choices after He returns.
IMHO-To blame the any family or children of being the source of such a horrendous act is the lowest of the low.No one knows another's person's faith.
Sandy Hook is a very suspicious event. Even Jesus would say "stuff happens" on that one. He says it much more elegantly of course: There were present at that season some who told Him about the Galileans whose blood Pilate had mingled with their sacrifices.
2 And Jesus answered and said to them, “Do you suppose that these Galileans were worse sinners than all other Galileans, because they suffered such things? 3 I tell you, no; but unless you repent you will all likewise perish. 4 Or those eighteen on whom the tower in Siloam fell and killed them, do you think that they were worse sinners than all other men who dwelt in Jerusalem?
5 I tell you, no; but unless you repent you will all likewise perish.” (Luke 13:1-5 NKJV).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.