In spite of all the breast-beating about Chicago murder rates, according to the FBI's latest report, there were 15 more cities with higher murder rates in 2012 than Chicago's 18.5 per 100,000 residents.
That pales in comparison with Detroit at 54.6 or New Orleans at 53.2 or St. Louis and Baltimore, both over 35.0. Chicago isn't even first among cities with a population over 1,000,000. That dubious distinction belongs to Philadelphia with 21.5 murders per 100,000.
Though the problem of urban murder is not limited to Chicago, it does seem tightly correlated with having Democrats as mayor. The largest big cities with Republican mayors, Indianapolis and Fort Worth, have murder rates of 12.5 and 6.5, respectively, while New York's low murder rate of 5.0 is obviously due to Republican Rudy Giuliani's reforms from 1994-2001, largely maintained by his successor, the Independent Michael Bloomberg.
— Bob Foys, Chicago
Correction: An earlier version of this letter noted Houston Mayor Annise Parker as a Republican. She is in fact a member of the Democratic Party.