Queensland police are confident that a taxi driver, who died 15 years ago, murdered young Ipswich woman Sharron Phillips in 1986.
If Raymond Peter Mulvihill was alive today, he would be charged with the 20-year-old's murder, detectives said on Friday.
Mulvihill died in 2002. He drove a cab that was based at the back of a Wacol convenience store where Ms Phillips made a phone call after her car ran out of petrol on the night of May 9, 1986.
Police said they are confident Mulvihill killed her, after detectives received specific information from an informant in May last year.
Detective Inspector Damien Hansen says police are keeping an open mind and will consider whether Mulvihill may have had an accomplice, but he said there was no evidence to support that at this stage.
He said a person came forward in May last year, and gave homicide detectives specific information about the murder of Ms Phillips.
It prompted a search of council-owned industrial land at Carole Park but soil taken from two drains failed to find any trace of human remains.
Det Insp Hansen told reporters there was nothing to suggest Ms Phillips' father, Bob, who died in 2015, was involved in his daughter's death.
In 2016, some of the Phillips siblings questioned the NSW alibi of their father Bob, who died in 2015.
Police have handed their findings to the coroner, but it's too early to say if an inquest into her death will be reopened.
The disappearance of Sharron Phillips what we know:
- Sharron Phillips was 20 when she vanished on May 8, 1986, while waiting for her boyfriend after running out of petrol in Wacol in Brisbane's southwest.
- She'd gone to a nearby army barracks to make a phone call but was turned away.
- In 2016, some of her siblings questioned the alibi of their father Bob, who died in 2015.
- He'd told a reporter he was in NSW picking up a truck on the night his daughter vanished.
- Police last year searched council-owned land at Carole Park following a tip-off in June.
- But soil taken from two drains failed to find any trace of human remains.
- In May this year, Attorney-General Yvette D'Ath said there was not enough new evidence to reopen the coronial investigation into the disappearance.