>>939080565 (OP)
Plenty of parents did so much drug before and during pregnancy it affected their DNA quality, plenty of parents drank and smoke through the 9 months, mother then has poor milk quality in her breasts, the baby cannot fully develop into a healthy person because of mom and dad's addictions. Then they raise their toddler on long binging hours of tv and smartphone, cognitive abilities don't develop. kid grows on medication because prescriptions is the only chain from snapping, add media brainwashing and easy gun ownership. This is why shit like this happens.