Local residents must be used to it by now. Only incidents involving fatalities make the hot news.
Casual traffic accidents or fights where one or two people die don't draw attention. It must be at least five or six fatalities, deaths by gunshot, or loss of police officers or people with special status, like some gang leader or councilor with local influence, for there to be a grand introduction.
The level of occupational hazard for mayors and city councilors here is probably second only to Mexico's. After all, customs and milieu here are no different from across the river in New Laredo, where bureau chiefs and police chiefs with real power thrive.
The busier the area, the lower the position of the bureau chief. Take Los Angeles, for example, where one must heed the preferences of mayors and city council and various capital owners, and can be easily investigated and removed.