Police are investigating the killing of two people on the third day of violent protests in townships across Tshwane over the ANC's choice for mayor. The victims were shot dead on Tuesday night, allegedly while looting a shop in Mamelodi.The killings follow the fatal shooting of a man on Sunday night outside the Agricultural Showgrounds in Pretoria, where ANC supporters had gathered for a briefing on the party's choice for mayor of the metro.Dozens of people were arrested on Tuesday and yesterday in Atteridgeville, Hercules, Mabopane, Soshanguve and Mamelodi on charges of public violence, theft and possession of stolen property, said police spokesman Colonel Noxolo Kweza. Last night, the Justice, Crime Prevention and Security Cluster said that the total number of arrests stood at 54, adding it was making ''good headway'' in restoring law and order.Also last night, an eNCA news crew was held up at gunpoint in Mamelodi and camera equipment was stolen.Protests flared across Tshwane this week after the ANC announced Thoko Didiza as its mayoral candidate, resulting in arson attacks on buses and trucks, clashes with police, looting and the closure of roads. Didiza was seen as a compromise candidate, with party members torn between current mayor and regional ANC chairman Kgosientso Ramokgopa and deputy chairman Mapiti Matsena.Yesterday, Matsena said he did not want to be mayor as it would "mean a pay cut". He holds the post of strategic executive head of the Tshwane council."From my point of view, I am going to be disadvantaged [if I become mayor]," he said. He denounced reports of animosity between him and Ramokgopa, saying he preferred Ramokgopa as a mayoral candidate and had lobbied the regional executive to support him as the current mayor. "I said this is a consensus list we must submit. I said to him I do not think we must go there and fight for [the position of] mayor and we agreed."He said he and Ramokgopa did not participate in the deliberations of candidate lists and the voting."We were asked to excuse ourselves. We were called back and told I will be the preferred candidate," he said, adding that the provincial executive committee had argued that there could be a problem if he remained the mayoral candidate for Tshwane...