A surprise order for mental testing for Oscar Pistorius raises questions for his trial . The South African athlete is accused of killing girlfriend Reeva Steenkamp in a premeditated shooting on Valentine's Day last year. A prosecution move for mental observation is very unusual . Judge Thokozile Masipa will formally issue her ruling on Tuesday . How the move affects Pistorius and the verdict depends on what experts decide .
A surprise order for mental testing for Oscar Pistorius raises questions for his trial . The South African athlete is accused of killing girlfriend Reeva Steenkamp in a premeditated shooting on Valentine's Day last year. A prosecution move for mental observation is very unusual . How the move affects Pistorius and the verdict depends on what experts decide .