The Dallas police department had a very well-deserved piss-poor reputation in the 80's. I remember one incident of a man who was arrested and somehow between the time he was put into the backseat of the patrol car and when that car arrived at the station, he was beaten to death. The cops got off scot-free on that one and on many others. Things got so bad that Congress convened hearings to investigate the department. Things have improved greatly since that time, thankfully. Then you add in that horrible shooting of those officers a few years back which was tragic on so many levels, one of which was just how far the department had come to change their ways to serve the community. IMO this case is far more complicated than it would first appear due to the history and legacy of the department. My $0.02.