In 2010, another member of the R.N.C., a former army chief named Faustin Kayumba Nyamwasa, was shot and wounded in Johannesburg.
The killings of Rwandan dissidents in South Africa had led to diplomatic strains between the two countries, including the expulsion of diplomats, before a thaw in relations under the current South African president, Cyril Ramaphosa.
Lunga Ngqengelele, a spokesman for South Africa’s Department of International Relations and Cooperation, said that South Africa and Rwanda continue to enjoy “good working relations.”
Of Mr. Bamporiki’s killing, Mr. Ngqengelele…