In most states even where the case is pretty well cut and dried it’s going to cost 25-50k to get through the pretrial phase and get it dismissed.
End up on trial for murder and you’re looking at 100k to a million or more.
Zimmerman’s atty was asked about the cost of defending him and while he didn’t give an exact figure he said if you just counted court days 10k per day would not be an unreasonable figure.
That’s why smart folks who carry also carry self defense insurance.