Custody dispute led to killings FATHER kills Daughter age 5 Kyla Rogers -then himself. http://bit.ly/lzBymD
The brother of murdered Gold Coast mother Tania Simpson says she was the rock of their family.
A custody dispute was at the centre of a triple homicide and suicide which included the death of five-year-old Kyla Rogers, Gold Coast police say.
Kyla was found dead alongside her father Paul Rogers on Monday night in a car near Casino in northern NSW.
Her mother, Tania Simpson, and family friend Anthony Way had been found dead in a unit in Robina on the Gold Coast about 8am (AEST) the same day.
Advertisement: Story continues below
Tania Simpson ... "always happy".
Police believe Rogers stabbed Mr Way and Ms Simpson to death before abducting Kyla and taking her to northern NSW, where they died together from carbon monoxide poisoning in his car.
Kyla's toddler brother was staying with his grandparents.
Acting superintendent Tim Trezise said a dispute over the custody of the children was at the centre of the tragedy.
Tragic ending ... Kyla Rogers.
"Information we have received in interviewing a number of witnesses is that Mr Rogers understandably was upset and concerned about not having access to his children," he told ABC Radio.
He said the absence of a suicide note had complicated the investigation.
Queensland's coroner will lead the investigation into the death of Kyla Rogers in the first case referred to the new family and domestic violence death review unit.