Overview
- McCullough pleaded guilty at Chelmsford Crown Court and received life imprisonment with a 36-year minimum term.
- Police discovered the bodies in September 2023 during a missing-persons search of the family home in Great Baddow, Essex.
- Prosecutors said she poisoned her 70-year-old father with a cocktail of prescription drugs, then attacked her 71-year-old mother with a hammer and knife the next morning.
- Investigators found her father sealed in a masonry "mausoleum" in his study and her mother wrapped in a sleeping bag in an upstairs wardrobe, with concealment items bought on his bank card.
- The court heard she concealed the deaths for four years and siphoned about £150,000 from pensions and accounts, after a GP's concerns triggered a warrant and an arrest captured on bodycam.