After she vanished, a huge search was launched involving hundreds of police officers and members of the public.She was lying face down on a path with her tights wrapped around her neck and a second pair tied around her wrists and body.
Her death horrified the nation and parents were warned not to let their children cross the heath alone as the killer was hunted.Her mum said at the time: "We can't understand what she was doing on the heath.Bellfield was known to regularly bunk off school and roam Hounslow Heath.Bellfield was also obsessed with blondes - matching Patsy's hair colour - and once told his ex: "All blondes are s**gs and deserve to die".
Following the bombshell, Patsy's dad George told how he received a phonecall from a teen boy after her murder - fuelling fears the monster was behind the killing.That same year, a man walked into a Norfolk police station and claimed he had murdered Patsy but was later found to be suffering from a mental illness that contributed to his confession.Peter Tobin was thrown into the mix as a potential suspect after targeting young women during his reign of terror.
The monster, who was jailed for life for the murders of three women, was known to be in the London area at the time. Patsy's murder was reviewed as a potential case that could be linked to Tobin under Operation Anagram but without any evidence, the theory was dropped.In a fresh appeal for information, the Met Police told The Sun Online: "The investigation into the murder of Patsy Morris in Feltham in 1980 remains open.