The following link is to a blog post by a woman that was in theatre #9, in Aurora, CO, when the shooting started. Her indomitable faith is seen as she writes about how she is dealing with the trauma of the whole event. I would encourage you to read her follow-up blog where she responds to some of those that criticized her and the things she said. Christians can respond differently to the tragedies of life because they know the God who is sovereign over all things.
http://aminiatureclaypot.wordpress.com/2012/07/20/so-you-still-think-god-is-a-merciful-god/