Beeld reported that the men’s lawyer told the court that they had broken into the home to steal possessions and get revenge on the way they had been treated by their employer, Geraldine Viana, 42.
The family’s gardener, Patrick Petrus Radebe, 24, their domestic’s son, Sipho Mbele, 21, and David Motaung, 20, broke into the house in Walkerville, assaulting and shooting dead Tony Viana, 53, and brutally raping and killing his wife, Geraldine.
They then tied up and gagged the crying Amaro Viana, 12, and pushed him into a bath of boiling hot water to drown him because he would be able to identify them.
It was not clear what had caused the boy’s death.
The family dog was killed by having his stomach cut open.
The men would be sentenced in September.