The British weren't always spineless wimps. They had Jack the Ripper, after all, and the Wars of the Roses. He killed 16 children and a teacher, and wounded a dozen others before blowing himself to hell. Some spokesperson from the NRA says that guns don't kill people, people do. The media cover the funerals and forget them.
Nobody even tries to use the tragedy to change anything.
Everyone knows the gun nuts have the clout and the control to block any real attempt at change. Jim Brady's brilliant wife, Sarah, lobbied for years and finally got a law passed that required states to do background checks on those seeking to buy handguns. It also imposed a five-day waiting period on those feeling the urgent need for a hand cannon. Had Hamilton been an American, incidentally, his killing spree wouldn't have been affected in the slightest by the Brady bill. Pretty damn weak stuff.