Uyinene Mrwetyana’s killer Luyanda Botha’s court appearance on a previous attempted rape charge has devastated her family.The former postal employee raped and killed the University of Cape Town student at a post office branch in Claremont, Cape Town, on August 24 2019.Botha, who is serving a life sentence, was recently hauled before the Wynberg magistrate’s court to answer an attempted rape charge laid in 2014. The alleged victim was a nursing student attending a college in Athlone.According to the prosecution, Botha had visited the victim at the college and walked in on her…