Mr Pistorius, who is on trial for shooting model Reeva Steenkamp at his home last month, denies the charges of premeditated murder, saying he mistook her for an intruder.
Mr Najib, however, has challenges of his own: his political adviser and two officers from a police unit that reports to him are on trial for the murder of a Mongolian fashion model.
Both have been haunted by controversy, Mr. Anwar in the form of repeated allegations of sexual misconduct, and Mr. Najib by his aide's conviction formurder in the case of Mongolian model Altathuya Shaariibuu.