Discussion

The first point to make is that the time series plots do indeed show that from the middle of the year 2015 and later, the data show that the trend in firearm-related incidents has steadily increased. If there is a public perception that crimes involving guns have been on the rise this can be reasonably confirmed by this data. In other words, the perception matches the reality, which is not always the case. 
In looking at how the incidents are distributed by zip code, the 40202 code seems to have more than a fair share of crimes with 20% of the crimes over the entire time period. Interestingly, the majority of venues that were sampled were in the 40202 area. The 40202 zip code includes the downtown area of Louisville. This concentration of venues and crimes in a single geographic area would seem not to bode well for the businesses in the 40202 area code.