Waldo Swiegers / Bloomberg via Getty Images
Grant Neuenburg / Reuters
Sfiso Buthelezi and his brother have denied that there was a conflict of interest.
The former member of the ANC's top six is getting increasingly vociferous.
Jabu Kumalo/Daily Sun/Gallo
Eskom officials enriched themselves, according to new evidence.
Mayor lambasts ANC's nervousness over inquiry: "where there's smoke there's fire".