Failure to help is one thing -- keeping others from helping is something else all together. Tying a person up in one's garage is one thing, but it becomes murder when you leave him there without providing what he needs to sustain life,
Hitting him with her car was one thing, but keeping him locked up in her garage knowing that doing so would cause his death, comes pretty close to first degree murder.
I'm just suggesting it was not race that motivated her.
Another good point. Was she waiting for him to feel better, free himself from the windshield, and let him walk away? No, she knew he would slowly die. I've changed my mind, it was premeditated and she does indeed deserve the death penalty.
It makes it premeditated murder. She should and could (but probably won't) receive the death sentence for this torture murder. There is no evidence she even offered him a aspirin or a glass of water,and it took him 2 or 3 days to die. This makes it torture.