Reply #5: The final response,

[SheilaT]

"Well then it would just go back to being a video game for her," does imply to me that kids this young may actually have a problem understanding the difference between violent video games and what exactly real life violence looks, feels, smells, sounds, and tastes like.

I was not there in Tucson, and I've never seen anyone shot or badly injured in any way, but I strongly suspect it's a whole lot different from video games.