Bertster, did you see the NAS study on gun laws? They found no indications of a causal correlation between restrictive gun laws and reduced crime. It did find some correlation between reduced crime and community policing programs.
You mention inner cities. I think the strongest factors there are population density and economic distribution. Places like Alaska (with very high gun ownership) have low crime rates, whereas places like Chicago (with VERY little gun ownership, but a MUCH higher population density) have VERY high crime rates. Also, the presence of organized crime (gangs) is a huge factor in crime rates.
You mention inner cities. I think the strongest factors there are population density and economic distribution. Places like Alaska (with very high gun ownership) have low crime rates, whereas places like Chicago (with VERY little gun ownership, but a MUCH higher population density) have VERY high crime rates. Also, the presence of organized crime (gangs) is a huge factor in crime rates.