Kimberley - The sentencing hearing of the young Griquatown murderer was postponed by the Northern Cape High Court on Friday.

Final arguments for sentencing would be heard on June 24.

Northern Cape Judge President Frans Kgomo adjourned the matter after the defence and State finished presenting evidence in mitigation and aggravation of sentencing.

On March 27, the court found the boy guilty of the murders of Griquatown farmer Deon Steenkamp, 44, his wife Christel, 43, and their daughter Marthella, 14. They were shot dead on their farm Naauwhoek on April 6, 2012.

The boy was also found guilty of raping the girl and lying to the police.

Sapa