In looking at the map of recent shootings in the Chattanooga area along with the zip code map of Chattanooga and the Tennessee Handgun Carry Permit database - it appears there is some information law enforcement and politicians should take note of.
According to the zip code map of the Chattanooga area, those areas with shootings have a total of 2,053 state-issued handgun carry permit holders.
Those areas without shootings have more than twice the amount of handgun carry permit holders with a total of 4,360.
To my knowledge, of the 31 or so shootings thus far in 2013 - there hasn't been one involving a handgun carry permit holder.
Therefore, according to this, more guns in the hands of law-abiding citizens does not correlate with higher use of guns by them in commission of crime - which disputes claims by some. Further, the areas with the highest density of handgun carry permit holders have not seen one single shooting - not one - which substantiates the claim by others that guns in the hands of law-abiding citizens has a deterrence upon crime.