Pretoria - Police will do "everything humanly possible" to track down those responsible for the deaths of two policemen earlier this week, says national Police Commissioner General Bheki Cele.
Mokoena, 45, and Mahlalela, 47, had stopped to assist what they believed were motorists whose vehicle had broken down on the Old Heidelberg Road on Sunday.
As the policemen approached the vehicle, gunmen got out and opened fire on the two without warning. One officer died at the scene while the other died later in hospital.
Cele told Mokoena and Mahlalela's families that police would do all they could to bring the killers to book.
"I know that arresting the killers will be the least we can do to bring comfort to the families, relatives and colleagues," he said.
Tuesday's visit by Cele and his team was to offer support to the families.
"We provide as much comfort to the families as we possibly can. Our visit to them is to say that we care and we share their pain but I know our pain can never be compared to the pain they are going through," he said.