concluded the most reasonable explanation for cory s arms appearing to levitate, is that cory was dead up to 12 hours before police arrived on the scene. i viewed this material and reviewed it with the eye of a scientist and and what we know about the development of rigor mortis. reporter: what would a jury believe, science, or the words from two of cory s own sons? cory s brother, a dentist, found himself struggling over the conflicting facts. science is my living you know, it s i have to believe in that, but i also have to, you know, believe in the family at the same time. so i m completely torn. reporter: i ve never seen a more difficult case, more closely argued. and there doesn t seem to be middle ground to there s there s none. reporter: parkinson urged the jury to focus on the science and one image. cory in her bed, her body in rigor mortis. he said it proved she d died hours before curtis claimed. it proved he was lying. it proved, he argued, that curtis
cory was dead up to 12 hours before police arrived on the scene. i viewed this material and reviewed it with the eye of a scientist and and what we know about the development of rigor mortis. reporter: what would a jury believe, science, or the words from two of cory s own sons? cory s brother, a dentist, found himself struggling over the conflicting facts. science is my living you know, it s i have to believe in that, but i also have to, you know, believe in the family at the same time. so i m completely torn. reporter: i ve never seen a more difficult case, more closely argued. and there doesn t seem to be middle ground to there s there s none. reporter: parkinson urged the jury to focus on the science and one image. cory in her bed, her body in rigor mortis. he said it proved she d died hours before curtis claimed. it proved he was lying. it proved, he argued, that curtis killed her. coming up the defense gets its turn and
appearing to levitate, is that cory was dead up to 12 hours before police arrived on the scene. i viewed this material and reviewed it with the eye of a scientist and and what we know about the development of rigor mortis. reporter: what would a jury believe, science, or the words from two of cory s own sons? cory s brother, a dentist, found himself struggling over the conflicting facts. science is my living you know, it s i have to believe in that, but i also have to, you know, believe in the family at the same time. so i m completely torn. reporter: i ve never seen a more difficult case, more closely argued. and there doesn t seem to be middle ground to there s there s none. reporter: parkinson urged the jury to focus on the science and one image. cory in her bed, her body in rigor mortis. he said it proved she d died hours before curtis claimed. it proved he was lying. it proved, he argued, that curtis killed her. coming up
appearing to levitate, is that cory was dead up to 12 hours before police arrived on the scene. i viewed this material and reviewed it with the eye of a scientist and and what we know about the development of rigor mortis. reporter: what would a jury believe, science, or the words from two of cory s own sons? cory s brother, a dentist, found himself struggling over the conflicting facts. science is my living you know, it s i have to believe in that, but i also have to, you know, believe in the family at the same time. so i m completely torn. reporter: i ve never seen a more difficult case, more closely argued. and there doesn t seem to be middle ground to there s there s none. reporter: parkinson urged the jury to focus on the science and one image. cory in her bed, her body in rigor mortis. he said it proved she d died hours before curtis claimed. it proved he was lying. it proved, he argued, that curtis killed her. coming up