Please keep in mind this is the south border area. Both sides of the border are infested with extremely well armed drug gangs. And by well armed I mean an AK47 is considered a minimum weapon. Peace Officers in the border areas have to deal with this every day. Recently Mexico had to send their army into one of their border states to bring the level of chaos down a couple of levels.
So those of you who do not live in this area, we have to live with it. The officers involved did their job and did it well. Unfortunately, the politicians, local, state and federal will sell them down the river to win votes.