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Key murder informant urged to call again

AAP logoAAP 12/09/2016 Melissa Grant

A Queensland teenager is hopeful those who killed her mother and uncle 12 years ago will face justice as investigators urge a mystery caller with "detailed knowledge" of the crime to call them back.

April and Ian Bailey were found dead inside their fire-ravaged home at Deception Bay on May 28, 2004.

April's daughter, Violet, was just four years old at the time and found uninjured at the scene.

Violet, now 17, joined Detective Inspector Damien Hansen to make a fresh appeal for information on Monday, following the arrest of Danielle Lee Fels.

Det Insp Hansen said police believed up to four people were involved in the deaths of the Baileys and urged a mystery caller with vital information to phone investigators back.

The anonymous caller was among more than 15 people who phoned police after seeing media coverage of Saturday's arrest.

"The information (they gave) is the events in the lead up, the planning that went into this, the reasons why and also who were involved," Det Insp Hansen said.

"They have detailed knowledge there that would lead to the successful prosecution of offenders."

April (left) and Ian Bailey, who were found dead in their Deception Bay home on May 28, 2004 after it was destroyed by fire. © AAP Image/Queensland Police April (left) and Ian Bailey, who were found dead in their Deception Bay home on May 28, 2004 after it was destroyed by fire. Violet said she wanted justice for her family and pleaded with anyone with information to come forward.

"I would appreciate so much for you to come forward, I would be very thankful for you to do it," she said.

"It means so much to me that so many people have already (come forward), not just to me but to my family."

"I do want to move on ... I do hope that justice does get served for them."

Violet previously made a public plea for information in December, leading investigators to interview a number of people again, as well as Fels' arrest.

Fels has been charged with two counts of murder and one count each of arson and possessing a dangerous drug.

The 34-year-old cried in the dock during her brief appearance at the Redcliffe Magistrates Court on Monday morning.

Outside court, one of Fels' supporters told reporters "we love her" and "there's more to the story".

Fels was remanded in custody and her case adjourned to December 20.

A $250,000 reward and indemnity from prosecution still stands for information leading to the apprehension and conviction of the persons responsible.

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