Cynthia Setuke, who was murdered on October 9, 2013, at Aquarius platinum mine's Kwezi shaft in Rustenburg.
JOHANNESBURG - The man who was arrested for the murder of miner Cynthia Setuke has been linked to the deaths of two more women in Soweto and police are investigating whether he could be a serial killer.
Charges in the Setuke case were controversially withdrawn earlier this year.
The family have since lodged an official complaint and accuse authorities of mishandling the investigation.
The suspect appeared in the Protea Magistrate&39;s Court in Soweto last week and again this week in connection with the murder of an 18-year-old who was found in a yard in Doornkop, Dobsonville, last year. The case was postponed for further investigation.
He has also been charged with the murder of a 16-year-old in Snake Park, police spokesman warrant officer Kay Makhubela said. The teenager was shot on May 25.
"We cannot rule it out but we cannot say he is a serial killer now," Makhubela told eNCA.com.
"The MO (modus operandi) appears to be the same... to kill and rape and dump people in the yard. We are still investigating. We don&39;t know if he is linked to other cases as well."
Makhubela said DNA evidence had linked the suspect to all three cases.
"When we found the girl in Snake Park, the DNA was taken and sent to Pretoria. Then in the Pretoria lab, we found the blood of this man who was arrested in Rustenburg matched with the one (case of the girl) who was murdered in Snake Park," Makhubela said.
"He explained even to me how he was released in Rustenburg."
Asked if police were confident of a conviction in the latest cases, Makhubela said: "We have DNA proof from the lab, so he won&39;t get away with it."
eNCA.com has been tracking the Setuke case since her murder in October, trying to find answers from authorities about conditions facing women working underground.
National Prosecuting Authority spokesman Nathi Ncube said he had no comment and referred queries to police.