New Inquiry Into 1988 S. Africa Disappearances A specialized missing persons unit in South Africa has opened a new investigation into the 1988 disappearance of two men last seen in the company of Winnie Madikizela-Mandela, the former wife of Nelson Mandela, prosecutors said Tuesday. Authorities say new information caused them to reopen the case of Lolo Sono and Siboniso Shabalala. The two young men figured into Madikizela-Mandela's chaotic life in Soweto when she ran a football club and faced a host of allegations accusing her and those under her of committing violent attacks. The National Prosecuting Authority of South Africa's Missing Persons Task Team, assigned to investigate disappearances from the apartheid era, is handling the investigation. Already, investigators have taken DNA samples from Shabalala and Sono's family members, spokesman Makhosini Nkosi said in a statement. "The investigations into this case are still ongoing and possible burial sites are still being examined on the basis of recently obtained information," Nkosi said. No exact burial sites have yet been confirmed or excavated. Madikizela-Mandela married Mandela in 1958 and they spent 27 years apart while Mandela was imprisoned by South Africa's racist white government. While beloved by some, her behavior grew increasingly erratic in the 1980s as crackdowns against her and the African National Congress liberation movement grew increasingly intense. She and her former bodyguard unit, known as the Mandela United Football Club, were accused of committing 18 killings and other crimes during this period. Ruling party African National Congress (ANC) member Winnie Madikizela-Mandela attends the nominations session for the new leadership of the ANC's elective conference at the University of the Free State in Bloemfontein, South Africa, Monday, Dec. 17, 2012. The violence by young men she allowed to sleep at her house and sponsored as a soccer club caused the mainstream anti-apartheid movement to ostracize her. Exiled ANC leaders, on orders from her jailed husband, ordered the club's disbandment. She later was convicted on kidnapping and assault charges involving four young men in 1991. Initially sentenced to six years in jail, she was ordered to pay a $3,200 fine on appeal. In 1997, as she appeared before the country's Truth and Reconciliation Committee in what she described as an attempt to clear her name, Sono's father Nicodemus testified he saw his son and Madikizela-Mandela in the same van. He said his son's face was puffy from a beating. Asked why his son was attacked, Nicodemus Sono said Madikizela-Mandela told him his son was a spy who needed to be dealt with. The van drove away, and it was the last time Nicodemus Sono said he ever saw his son. "I went to see Mrs. Mandela and she said, 'Lolo, we dropped him off somewhere,'" his father testified. Nomsa Shabalala, mother to Siboniso, said he had been part of a group, including Lolo, targeted by Madikizela-Mandela's bodyguards I want Winnie to give my son back. I want his bones and remains," she said at the time of the hearings. When it came time for her to offer testimony, Madikizela-Mandela described most of the accusations as "ludicrous," "lunacy" or "ridiculous." Madikizela-Mandela divorced Mandela in 1997. She currently is a member of the now-governing ANC political party's national executive committee and has taken part in this week's Mangaung leadership conference, being held in the city also called Bloemfontein.