Before the events in Utah, today—September 11—was already a somber day of remembrance. Twenty-four years on, we honor the lives lost and the resolve that followed. That same resolve is what we need now. We are all shocked by the assassination of Charlie Kirk yesterday. We are saddened—and moved to act—by the pattern of political assassinations and attempts over the last 14 months. We will avoid speculation and await official updates even as we care for one another and our communities....