<sod >Mr Pistorius blocked both his ears with his thumbs and sobbed into a white handkerchief as Professor Saayman described in some detail the size and shape of the four gunshots that killed Ms Steenkamp on Valentine's Day last year.< eod>< sod > Pistorius blocked both his ears with his thumbs and sobbed into a white handkerchief as Professor Saayman described in some detail the size and shape of the three gunshots that killed Ms Steenkamp on Valentine's Day last year.< eod>