Okay, this might seem like a tangent, but....my mind needs to rest somewhere other than the graphic images and coverage.
Neighbors have mentioned that the killer was impolite and didn't hold doors open for others. We all know that type. This is NOT to imply that people without manners are therefore criminals....but it does show the importance, imo, of teaching our kids manners.
When you open the door consistently for others, when you smile and exchange pleasantries with neighbors, when you give off the demeanor of thoughtfulness, this becomes habit. Manners help shape your character and influence your outlook on life. I want my kids to be thoughtful, caring people...and ONE way (of many ways) to instill those character traits is to teach manners.
And that goes for us too - we grown-ups need to show manners - even when it seems that the culture around us is losing the habits of good manners. Maybe one teeny tiny thing we can do in response to these tragedies is to spruce up our own manners. Americans are a friendly people - so let's support our culture and BE NICE to someone today...a stranger, a neighbor, a friend, a relative, a pet, the environment. Just be nice.
And, please, don't tell me this doesn't matter in the face of terrorism. I know my friendly smile means nothing to someone who hates me. But, it matters to me. And it's something active I can do besides reading news reports and worrying our world is too much of a mess to fix.
Just my personal, dorky, heart-felt opinion.