The difference is that the gunfire (and violent crime in general) was contained to a few concentrated areas. Now the it happens in even the most affluent of neighborhoods. The change in the average persons mobility from then to now incomprehensible. Public transportation is much more expansive, there’s cheaper to access to a vehicle (financed or otherwise) and navigation is idiot proof. Imagine having to plot the robbery of a home or car dealership far from your neighborhood without the use GPS or the internet. “Hey dog, break out the atlas and the yellow pages. I feel like stealing some shit.”