It was a fight and a struggle that left the husband of a former Bloomington High School teacher dead. Court documents in Sarah Mellor's murder case paint a picture of a tragic fight the night her husband died. Investigators say Mellor felt threatened after she and her husband argued, they then fought, and he ended up being stabbed in the chest. Authorities say the two didn't have a history of domestic violence. Mellor pleaded guilty to second degree murder earlier this week.