A man found guilty of killing 55-year-old Pamela Jackson, from Chester-le-Street in County Durham, will be sentenced for his crime.
51-year-old Adrian Muir buried his victim's body on moorland near Halifax after she went missing last March.
A jury found him not guilty of murder but guilty of manslaughter.
The investigation was one of the largest in Durham Constabulary's history. Search teams found her body after analysis of Adrian Muir's mobile phone. Records showed he had used it on moorland he date she disappeared.
After the grave was discovered Muir's fingerprint was found on a shopping bag wrapped around flowers laid with the body.
Members of Pamela Jackson's family are expected to be at Newcastle Crown Court to see him sentenced.