A Brisbane resident alleged to have murdered three Singh siblings in their home in Easter 2003 has been charged with the murders of all three.

38-year-old Max Sica found the bodies of 24-year-old Neelma Singh, her 18-year-old brother Kunal and 12-year-old sister Sidhi Singh denied any involvement in the killings, however was the prime suspect.

The children's parents and former Fiji residents, Shirley and Vijay Singh were in Fiji on business when the killings took place in their Brisbane home.

Max Sica will appear in the Brisbane Magistrates Court today.