If that 18 year old displays the same utter lack of remorse and incomprehension that what she did was VERY wrong, I suspect a jury will put her away for at least a year or two.

What a lovely graduation present that will be.

The apparent inability for the kids involved to understand the concept of how it might be wrong to perpetrate violence against another human is very scary. It seems to go beyond the typicla teenage "so what?" attitude.