Queensland police have confirmed the two people who they allege were murdered at Stretton on Brisbane's southside yesterday were a 47-year-old mother and her 20-year-old son.
Detective Superintendent Andrew Massingham said Weifeng Huang, 49, has been charged with their murders.
"We have been able to establish overnight that the person that was charged and the female victim were in a relationship for some months and that all persons did reside here at this residence."
Police were called to the home at Coolidge Court at 9:40am on Monday where they found the bodies of Jifeng (Eileen) Liu and her son Wenhao Du on the second storey of their home.
Mr Huang was also located at the residence, treated for injuries and taken to Princess Alexandra Hospital where he remains under police guard.
He was charged by detectives overnight, and a bedside court hearing was held for the accused this morning.
"He has undergone some surgery overnight ... he is suffering some injuries that we say happened during the course of the [alleged] attack."
Mr Huang appeared in the Brisbane Magistrates this morning via telephone, where his matter was adjourned.
His lawyer translated the information to his client in Cantonese.
The matter will return to court on September 19.
Detective Superintendent Massingham said there had been no prior calls to police from the address and there were no domestic violence orders in place.
"I can also confirm that the [alleged] weapons that were located yesterday that were described as two bladed weapons are in fact a long-handled kitchen knife and a meat cleaver."
Police confirmed it was Mr Huang who rang triple-0 and the use of a Cantonese interpreter was required at the scene.
Detective Superintendent Massingham said police now believe the alleged homicides occurred in the early hours of Monday morning.
Police are seeking information from the public regarding the movements of a silver SUV that left the premises about 4:22am.
Detective Superintendent Massingham said the bodies were located at the top of the stairs "in a bedroom on the right-hand side" and were dressed in "night attire."
"So that is consistent in my view that something has occurred in those early hours of the Monday morning.
"We also believe that one of the victims may have had phone contact with a number of friends and family just prior to the [alleged] homicides occurring."
Police thanked the Chinese community for their help to piece together what "is a complex matter".
Police said the victims had relatives overseas and the formal identification process would take some time.
"We believe an autopsy will be carried out this morning on the 47-year-old female, the second autopsy may not occur for some days."
Detective Superintendent Massingham said Queensland police were liaising with counterparts overseas to provide information "during this difficult time".
He said police would doorknock neighbours again today to see if they heard anything in the early hours of Monday morning.
He said the accused needed surgery for lacerations to his leg, that he is using his right to silence and has engaged a solicitor.
Councillor for Calamvale Angela Owen said the community was shocked at the deaths.
"It is tragic for the local community ... our hearts go out to the family, friends and neighbours at this time," she said.
