all, a devoted christian, who would never commit murder. mark did not believe that it was good enough, just to profess the words of christ, or go to church, he felt he had to live it. mark when was defense came down to this, his wife died in a horrible accident. the prosecution never approved a crime was even committed. ladies and gentlemen, doctor mayor gwen weir is innocent. this case police investigation, an investigation, despite what you just heard from th prosecution, did not eliminate fugitive carbon monoxide as a source from the hot water heater. the water heater was now at the heart of the defense. if the jury believed in malfunction that night, it could ve sent carbon monoxide into her room, that was reasonable doubt. are you worried that a journey