Detectives investigating the 2017 suspicious death of Hayley McClenahan-Ernst at Kingswood are renewing a public appeal for information.
On Sunday 21 May 2017, police were called to a home on Derby Street about 12.15am, where 21-year-old Hayley was found unresponsive.
NSW Ambulance paramedics rendered assistance, but Hayley – who was pregnant - died at the scene.
A 21-year-old man - known to Hayley - was charged at the time with contravene prohibition/restriction in AVO (DV) and was dealt with by the courts.
The circumstances surrounding Hayley's death were deemed suspicious and despite extensive investigations under Strike Force Fielding, no one has been charged over her suspected murder.
In 2025 a coronial inquest was suspended, and the matter was referred to the Office of the Director of Public Prosecutions (ODPP).
In October 2025, detectives attached to Nepean Police Command reviewed the matter and have continued to conduct inquiries. A number of witnesses have since been identified and spoken to.
Nepean Police Area Commander, Acting Superintendent Michael Cantrell said Strike Force Fielding detectives are exploring a number of new lines of inquiry in the search for any person involved.
"Nepean Detectives have spoken with a number of witnesses and believe there are more people who have information about Hayley's death who have not previously come forward," A/Supt Cantrell said.
"Any piece of new information could be the key to solving this case and providing answers to Hayley's family."
Hayley's mother, Lisa Ernst, said she hopes someone will come forward to help police identify those responsible for her daughter's death.
"Hayley was deeply loved by our family, and we have never stopped missing her smile, her infectious laugh, and the fierce love she had for her children," Ms Ernst said.
"My grief over losing my daughter has only deepened with time, especially as I still have no answers about what happened to Hayley."
Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au Information is managed on a confidential basis. The public is reminded not to report information via NSW Police social media pages.
