AFRICAN MIRROR REPORTER SOUTH African courts have handed down hefty sentences to two men who killed women in the most gruesome manner. Today, Dumisani Mkhwanazi, who killed Palesa Madiba, a University of Johannesburg student, and buried her in a shallow grave, was sentenced to an effective 31 years in prison for his crimes. Madiba had been visiting Mkhwanazi’s niece, Tshidi, when she was attacked and killed. Mkhwanazi then buried her in the yard in Phiri, Soweto. Her remains were found two years after she disappeared. Judge Prince Manyathi sentenced Mkhwanazi (37) to: 20 years for murder.3 years for theft of…