When a loved one dies in a dream it means that the dreamer is lacking an attribute the person holds. If a partner dies, the person is looking for a change.
There are different meanings depending on who dies and how they die. If a parent dies, the dreamer's relationship with them is undergoing changes. If the dreamer dies, then the person is going to have changes or make a discovery about themselves. When the person is already dead and the dreamer sees them die again, the person may feel upset that they did not get proper closure. Smelling death means the past should be let go.