The daughter of a woman who a coroner says was likely murdered in Queensland in 2005 is hopeful her mother’s killer will one day be brought to justice.

The daughter of a woman who was likely murdered in Queensland’s far north says she’ll never stop looking for her mother’s killer.

Lily Parmenter was 19 when her mother Kathleen O’Shea, known as Katie, disappeared while visiting the Atherton Tablelands for the birth of her first grandchild in 2005.

On Thursday a coroner ruled the 44-year-old Melbourne mother-of-five was likely murdered, but who killed her and where her body lies remains a mystery.

“I will not stop looking for my mother,” Ms Parmenter, who has fought tirelessly for answers, told AAP on Friday.

The 27-year-old also had a message for her mother’s killer: “Know your secret will come to the surface sooner or later”.

Ms Parmenter described her mother as a selfless woman who loved being a mum, enjoyed cooking and had a wicked sense of humour.

“Whatever achievement we had made, big or small, mum would always be so proud of us. Losing her has taken a piece of all of us.”

Ms Parmenter said she agreed with the coroner’s ruling that her mother was murdered and said she hoped her killer would one day be brought to justice.

“I just want to find out who killed my mum and hopefully be able to bury her remains with dignity,” she said.

She urged anyone with information about the disappearance to come forward.

Northern Coroner Jane Bentley ruled Ms O’Shea died at the hands of a person or persons unknown.

She likely met the person or persons at the Atherton Hotel or soon after she left there on December 29, 2005 – the last day she was seen alive.

No one was named as a suspect by the coroner and the inquest was closed.

Counsel assisting the coroner, Stephanie Williams, said during the inquest that Ms O’Shea’s son Alan or a convicted rapist living in the region may have been responsible for her disappearance.

However, she said there was no evidence linking anyone to her death.