A 20-year investigation into the murder of backpacker Kirsty Jones has been closed.
Ms Jones, 23, died in Thailand, where the 20-year limitation period on the case ended on Sunday.
No one can now be prosecuted for the rape and strangulation of the young woman from Tredomen, near Brecon, Powys, at a guesthouse in August 2000.
Speaking ahead of the 20th birthday, her mother Sue Jones said it was “a really sad time for us as a family”.
“We have worked hard all these years to keep the Thai authorities interested in Kirsty’s case and to ensure that the investigation continues to try to identify those responsible for her murder,” she said. .
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She added that her “bright, intelligent and independent” daughter had the “world at her feet”.
“Kirsty is part of our lives, while her killer is still at large,” she said.
“If they had been brought to justice, the sadness and emptiness would remain the same, but it could have brought us to some closure.
“I hope we made her proud by trying to get justice. ”
Ms Jones had visited Singapore and Malaysia before moving to Chiang Mai, Thailand in early August 2000.
She moved into a guesthouse and went trekking in the mountains, sightseeing and dating.
In the early hours of August 10, after a night out with friends, Ms Jones was assaulted and murdered in her bedroom.
Superintendent Phillips of Dyfed Powys Police said: ‘No one has ever been prosecuted for Kirsty’s murder and Thailand’s Department of Specialized Investigations has now closed the case, which means the investigation is permanently terminated. .
“Myself and my colleagues before me have been in regular contact with Kirsty’s family throughout, and we share their deep disappointment that no one has ever been brought to justice. “