She did worse than just leave him to die. She took him to a place where he couldn't be found to be helped. Too bad she didn't get more time. I sure help she doesn't reproduce in prison.
She didn't just leave him to die, she hid him so no one else could help him, and she came again and again into the garage to check and see if he was dead yet. She kept him hidden to ensure he died. That's murder. I wish they'd give her the chair, followed by the firing squad, followed by hanging, followed by the guillotine.
As to the mitigating circumstance of being impaired by her intake of marijuana, and ecstacy, and driving while intoxicated ... those are not mitigants but should have been separately prosecuted with additional penalties piled on.
Somewhere between 99 to life with no possibilty of parole sounds about right for her. But what did the Texas taxpayer ever do to deserve being hit up for her food, clothing, shelter, and medical expenses? More I think of it, the better "Ole Sparky" sounds.