Overview
- Parker, 42, also admitted actual bodily harm for a February 19, 2023 assault on his stepfather.
- He entered his pleas via video link at Hull Crown Court last week and remains remanded to a secure hospital.
- A 2024 trial of facts found he carried out the killing after he was initially ruled unfit to plead.
- A post-mortem concluded Helen Harrison died from a chest stab wound combined with mechanical asphyxia, and Parker had called 999 to report an injured woman.
- Humberside Police’s Det Supt Nicola Burnett described the case as a tragic and senseless killing and thanked the investigation team.