Everyone involved knows this cop will not be convicted. Even the DA. He probably won’t get to the trial stage.
This is unmitigated pandering to 1.) be a part of the “solution,” 2.) be seen as a real hero of the revolution and 3.) to placate and appease in order to quell the inevitable irrational rage mob that is out of control.
All at the expense of the police.
None of the above mean the DA is not a total asshole and corrupt fraud.