Acrimony, animosity, annoyance.
Exasperation, indignation, vexation.
Where the hell do you start to describe the mood here?
They are not even close to the right words to capture just how angry people are.
There is nothing worse a human being can do than randomly open fire and murder innocent kids in cold blood at a school.
Except, perhaps, not do anything to prevent it from happening again.
The infuriation here is not just over the needless death of so many innocent children and adults but that another school shooting has rocked America.
The blood-soaked corpses of tiny children should be a turning point for a nation that, sadly, is growing accustomed to being shocked and surprised.
They know all about mass murder.