Making Davis LTD a crime free area is pointless... Like @lambchops said pump your gas somewhere else. You’ll just be adding more work for the administrators who already have enough on their plates. I don’t see this moving forward.
In regards to whether it’s unrealistic or realistic for there to be multiple murders or brawls between other gangs near the LTD. It is very much realistic as you have multiple gangs in that area fighting over turf. Happens all the time in areas with high gang activity, especially in the US.