Maybe one should explain to those Christians who praise god for surviving the recent massacres that god wasn't watching.
No! He was spectating, like an ancient Roman emperor in an amphitheatre, ready to give his thumb up or thumb down for each case as his whim took him.
I think you're rather projecting. I can't claim to know what many Christians believe about the shootings or how they explain it away (although, as davknight points out, the old "He works in mysterious ways" probably figures largely) but I'm pretty sure that the image of a God behaving with literally imperial indifference lies only with you - something for which we rightly call out true believers, presuming to know the mind or the actions of an imagined divine being.
Since the divine entity is imagined, we can imagine whatever we wish.
These recently occurring indents a proof that no God Exist or If he does He is the greatest serial killer of all written history for once again religious nuts, murder inasant people of whom they did not know or care for their rights as human beings