PHOENIX serial killer Sipho Agmatir Twala (31) was sentenced on Wednesday to 506 years in prison after he was found guilty on 27 charges of murder, attempted murder, indecent assault and rape. Twala was found guilty on 16 murder charges, one of attempted murder, seven of indecent assault and three of rape. In handing down sentence Judge Vivienne Niles-Duner said it was evident Twala had shown no remorse for his actions. Judge Niles-Duner said photographs of victims and evidence led during the trial showed that the attacks were brutal and the lengthy sentence will prevent parole.