I don't know what you're guessing. We can blame this on mental illness, or ideology, or Muslims, or Christians, or blacks, or whites, but all of this misses a bigger point - it is too easy for those criminals to get guns. Until we address this reality we will continue to have daily mass shootings.
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.