Rwandan former Gen. Faustin Kayumba Nyamwasa, looks on as a lawyer Gerhard van der Merwe, representing the Rwandan government interrupts the proceedings in a court in Johannesburg, South Africa, Wednesday, June 20, 2012. Nyamwasa, a critic of his former boss Rwandan President Paul Kagame, took the stand as a witness Wednesday, making his first public appearance since he was shot and wounded in Johannesburg in 2010. (AP Photo/Themba Hadebe)

Associated Press
Rwandan former Gen. Faustin Kayumba Nyamwasa, looks on as a lawyer Gerhard van der Merwe, representing the Rwandan government interrupts the proceedings in a court in Johannesburg, South Africa, Wednesday, June 20, 2012. Nyamwasa, a critic of his former boss Rwandan President Paul Kagame, took the stand as a witness Wednesday, making his first public appearance since he was shot and wounded in Johannesburg in 2010. (AP Photo/Themba Hadebe)
Rwandan former Gen. Faustin Kayumba Nyamwasa, looks on as a lawyer Gerhard van der Merwe, representing the Rwandan government interrupts the proceedings in a court in Johannesburg, South Africa, Wednesday, June 20, 2012. Nyamwasa, a critic of his former boss Rwandan President Paul Kagame, took the stand as a witness Wednesday, making his first public appearance since he was shot and wounded in Johannesburg in 2010. (AP Photo/Themba Hadebe)
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