Well I would not go so far as that.
We elect people to represent us and to make decisions. Our elected representatives should not be afraid to make decisions because of the off chance that some odd bad thing may come of that decision.
The shooter is responsible for the dead people not a poorly conceived law. Yes that poor law made things much worse than they otherwise may have been. But hauling the congress in to court would only entangle congress in endless handwringing and make them fear to act. Not to mention no sane person would ever run for office again. Every law has unintended and unforeseeable consequences.
The consequences of the no guns on school grounds is easy for anyone not blinded by leftist ideology to see but that does not change the fact that legislators must be free of the fear of legal jeopardy for their votes made in good faith.
What bothers me most about this event is that these two brave people obviously had the courage and selfless concern for the children to act in the face of death to try and save the lives of the children in their care, but because of foolish laws that were supposedly intended to prevent a horrible crime such as this, these brave souls were prevented from ending this murderous act and uselessly sacrificed their lives.
Had these individuals had the right to carry the necessary tools to act against this loony their lives and the lives of many children would have been spared.