Need help answering this question

An upper middle class professional women found her husband at a hotel room with his mistress after he had sworn to her that he had broken off the affair. She was devastated because the couple had young toddler twins and she had attempted to save her marriage through changing her appearance and de-emphasizing her career. She fought with the mistress in the hotel lobby and was dragged off the woman and pushed down by her husband.

Then in the parking lot of the hotel where the confrontation occurred, in front of many witnesses (you), she ran over her husband and killed him.

Q: Would you find her guilty of first degree murder, second degree, or some other crime? What punishment does she deserve?