What does this say about us?

I hadn't heard much about the school shooting in Tennesee on the news, so I decided to google it. This was about all I came up with.

A Principal at a high school gets shot dead by a student and we hardly notice. Maybe because of things like this. Even high school football games have become deadly.

I see this over and over in this country. We become numb to the evil that surrounds us. We shrug or shake our heads and wonder what can be done, and then off we go to Starbucks.

Was Columbine so awful that everything else seems tame in comparison?