WASHINGTON — quarter of Columbia officials say the city is on choice to disc the lowest homicide rate now virtually partially a century.The decline mirrors a national trend of falling tariff happening main American cities. But its startling inside a city so as to was ravaged by the crack contagion two decades back and wherever homicides totaled 479 inside 1991. present were 108 homicides like of Thursday. He says the integer hasnt been to low since the initial 1960s.D.