The recent school shootings in Cleveland carry several important lessons. Like the previous horrors at Virginia Tech, this sad incident shows that even good schools can’t always redeem deeply troubled kids. Our emphasis on more educational spending, or small classes, or other forms of school reform can’t always make up for dysfunctional homes or student mental illness. The 14-year-old Cleveland shooter, Asa Coon, suffered on both counts and had compiled a recent record of violence, threats, suicide attempts and abuse that should have brought him to a youth prison or psychiatric hospital long before the rampage that wounded two teachers and two fellow students. As with the Virginia Tech mass murderer, it’s amazing that authorities failed to take decisive and preventive action in view of all the warning signs of menace and madness. We’ve gone much too far in placing the personal rights of terribly sick people above the welfare and safety of their colleagues and neighbors.