No, the bags under her eyes, and her hair hold a sort of like a "sick day" look to me. I think her husband or SO killed her, and that it's very possible he has married and murdered other women as well. If the robe were put on her after death, there'd be blood staining/smears on it. I think she was wearing it when she died, and she died in her own home, or in a place where she felt comfortable with the idea of being in a robe.