[The Conversation Africa] The murder of Chris Hani, a South African liberation struggle hero, by Janusz Walus on 10 April 1993 almost derailed the country's transition from apartheid to democracy. Now, almost 30 years later, the constitutional court has ruled that Walus (69) must be released on parole. The move has been met with anger by many in the country, including some in the governing African National Congress alliance. Law professor Jamil Mujuzi explains the country's parole system for prisoners on life sentence, and what he