Twenty-eight female guards were unfairly dismissed by a security company because the client‚ Metrora.
A 60-year-old Mpumalanga farm worker was butchered to death in her sleep and robbed on Wednesday.
The woman, who worked at a farm in Barberton to boost her government pension of R840 a month, was found dead by fellow farm workers when she did not arrive for work.
She was found dead on her bed with open wounds in the head and a butcher's knife at her side.
Barberton police spokesman Constable Jabulile Ndubane said the grandmother was stabbed twice with the knife.
"The prime suspect is a neighbour who has vanished since yesterday.
"We were alerted by the community that one of her neighbours had run away.
"When we went to his house we found that he had taken all his belongings and left," said Ndubane.
The neighbours said there was no history of ill-feeling between the murder victim and the suspect.
The police said they would divulge the pensioner's name once her relatives had been told of her death.
A farm worker, who did not want to be named, told Sowetan: "I did not see her at work, so I went to check on her at her room.
"When I entered the room I saw blood on the floor. She was on her bed," said the terrified man.
Police are investigating a case of murder. No arrest had been made by yesterday afternoon.