Diane McIver was riding in the front passenger seat of a Ford Expedition SUV when she was shot by her husband Tex McIver. He admitted that to police. The question, as the investigation went on, was whether the firing was intentional or discharged by accident. Tex McIver claimed the latter...that the .38-caliber snub-nose revolver, discharged by accident. McIver's attorneys have filed an appeal of his murder conviction, claiming the judge made several errors during the trial. Today on Body Bags, former death scene investigator and forensics expert Joseph Scott Morgan looks at what the evidence tells us.