"It's time the long arm of the law put a few more in the ground".
Sounds like it's time for the boys on the bus to be armed.
The area in question is generally suburban, not urban or rural. Not a "bad" area at all. However its not far south I-35 to the land of the Hispanic gangs, 7-10 miles maybe. No telling where the shooter came from, or how long he/they had been tailing the bus.