Unfortunately...
...matters like this rarely make it to trial. If the individual is caught and charged, expect a plea and sentence with little to no jail time. Perhaps Mr. Barton could be civily ompensated by the perpetrator, but even that would likely result from a settlement rather than trial.
But one other thing to consider...with your mind already made up without necessarily being willing to remain objective until you've objectively heard both sides of the story and weigh the evidence disapassionately, you'd probably never get picked to sit on the jury anyway.
Remember in this country one is presumed innocent until proven guilty. Any standard less than that would be "unamerican."