REGINA, Nov 23 (LSN)  Today the Saskatchewan Court of Appeal threw out a lower court’s granting of a constitutional exemption to Robert Latimer, the Saskatchewan farmer who used his car as a makeshift gas chamber to kill his 12-year-old disabled daughter Tracy in 1993. The exemption, based on a supposed motive of mercy killing on the part of Latimer, allowed the father to be given a minimal 2-year sentence (half of which could be served at home) rather than the minimum 10-years in prison without parole for his second-degree murder conviction.