Alastor

So you were Alastors partner when you both were alive and the reason he married you was because you worked at a hospital and had excess to things he needed and if the cops started to get suspicious of him he could have you lie to the cops saying he was with you and you knew what he was doing but you just kept quiet and did what he asked of you which is how you ended up in hell and your form is a sheep since you followed him blindly (ps he owns your soul as well)