No. It's because her killer was not guilty. I know conservatives think "I don't like him" is sufficient evidence for a conviction, but thankfully, it isn't.
Meanwhile, if you can somehow convince a judge that the angle of her shooting came from the ground, meaning that she was standing in front of him with her back to him and he was lying on the ground shooting up at her, you might get the judge to reopen the case. Oh, wait! That would be double jeopardy, but a simple Constitution guarantee is easy for you to ignore, isn't it?