About 10,000 Americans died by handgun violence, according to federal statistics, in the four months that the Supreme Court debated which clause of the Constitution it would use to subvert Chicago’s entirely sensible ban on handgun ownership. The arguments that led to Monday’s decision undermining Chicago’s law were infuriatingly abstract, but the results will be all too real and bloody.

This began two years ago, when the Supreme Court disregarded the plain words of the Second Amendment and overturned the District of Columbia’s handgun ban, deciding that the amendment gave individuals in the district, not just militias, the right to bear arms. Proceeding from that flawed logic, the court has now said the amendment applies to all states and cities, rendering Chicago’s ban on handgun ownership unenforceable.