In my opinion the authorities, are weighing the question, "Is it better to placate the racists with a trial?"... "but if the trial does not produce the "desired results", how bad will that be, compared to deciding a no trial backlash based on overwhelming evidence of justifiable self defense"... damned if they do and damned if they don't...
If this goes to trial, it will be either an acquital or a hung jury...then the SHTF big time, just as you suggest. I’d be at personal defcon2 status regardless.