FILE - In this Thursday July 12, 2012 file photo, Rwandan exile Kayumba Nyamwasa, left, and his wife Rosette Kayumba, sit in a Johannesburg court after finishing his testimony as a witness in the ... more 
FILE - In this Thursday July 12, 2012 file photo, Rwandan exile Kayumba Nyamwasa, left, and his wife Rosette Kayumba, sit in a Johannesburg court after finishing his testimony as a witness in the trial of six East Africans accused of attempted murder in his 2010 shooting. Critics of Rwanda's government say the killing in South Africa in early Jan. 2014 of prominent Rwandan dissident Patrick Karegeya is another sign of an increasingly violent power struggle among the country's Tutsi elite who have held power since 1994. (AP Photo/Denis Farrell, File) less 
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Associated Press | Photo By Denis Farrell, File
Tue, Jan 21, 2014 10:58 AM EST