The most recent Economist has this figure representing homicide rates around the world.
The fact that certain nations have such high homicide rates is very unfortunate. Are these rates correlated with anything? The Economist suggests that lower levels of economic performance are correlated with higher homicide rates. This is partially true, but it does not tell the whole story. Basic regressions looking at income and homicide are missing an important variable, namely the effect of government.
My coauthor John Levendis and I investigated the data for 63 countries and consistently found that higher homicide rates are correlated with more government (as measured by lower levels of economic freedom). Maybe people should start questioning the assumption that government is created to reduce crime.