More guns in law-abiding hands mean less crime. The District of Columbia proves the point. [...] A telling story is illustrated by the murder numbers since the handgun ban and gun-lock bans were struck down. Between 2008 and 2009, the FBI's preliminary numbers indicate that murders fell nationally by 10 percent and by about 8 percent in cities that have between 500,000 and 999,999 people. Washington's population is about 590,000. During that same period of time, murders in the District fell by an astounding 25 percent, dropping from 186 to 140. The city only started allowing its citizens to own handguns for defense again in late 2008. Few who lived in Washington during the 1970s can forget the upswing in crime that started right after the ban was originally passed. In the five years before the 1977 ban, the murder rate fell from 37 to 27 murders per 100,000. In the five years after the gun ban went into effect, the murder rate rose back up to 35. One fact is particularly hard to ignore: D.C.'s murder rate fluctuated after 1976 but only once fell below what it was in 1976 before the ban. That aberration happened years later, in 1985.