USA - you disgust me! Another home-grown terrorist shooting kills 19 kids and 2 teachers

A 'system' that 'permits' an 18 y/o to buy two assualt rifles then go on a gun-fueled rampage killing 19 children and two teachers - WHAT THE ACTUAL FUCKING FUCK IS WRONG WITH YOUR FUCKING COUNTRY??? The legislative framework plus the cultural and religious approach that allows this to happen is just FUCKED UP!