Argument. reporter: another neighbor testified she heard cory and curtis really going at it and on a specific date, the night before valentine s day 2006. she happened to be out for a stroll. it actually i did cause me to pause. i guess i was listening to see if somebody was in distress. reporter: the prosecution s theory this go-round on how cory died remained the same. after a heated argument, the night before valentine s day, curtis suffocated his wife with a pillow in a fit of rage. he then waited up to twelve hours before police were called. come over here and have a seat please. reporter: and once again science would play a leading role in the prosecution s case. but prosecutors had a new witness. a star forensic expert. i have also testified before the house of representatives. reporter: in a 64-year career, dr. werner spitz has consulted on the jfk and martin luther king assassinations, as well as in
Argument. reporter: another neighbor testified she heard cory and curtis really going at it and on a specific date, the night before valentine s day 2006. she happened to be out for a stroll. it actually i did cause me to pause. i guess i was listening to see if somebody was in distress. reporter: the prosecution s theory this go-round on how cory died remained the same. after a heated argument, the night before valentine s day, curtis suffocated his wife with a pillow in a fit of rage. he then waited up to twelve hours before police were called. come over here and have a seat please. reporter: and once again science would play a leading role in the prosecution s case. but prosecutors had a new witness. a star forensic expert. i have also testified before the house of representatives. reporter: in a 64-year career, dr. werner spitz has consulted on the jfk and martin luther king assassinations, as well as in other high-profile cases
Every day. essentially for the entire time that we lived there. so six years. as i walked by the house i heard an argument, a loud argument. reporter: another neighbor testified she heard cory and curtis really going at it and on a specific date, the night before valentine s day 2006. she happened to be out for a stroll. it actually i did cause me to pause. i guess i was listening to see if somebody was in distress. reporter: the prosecution s theory this go-round on how cory died remained the same. after a heated argument, the night before valentine s day, curtis suffocated his wife with a pillow in a fit of rage. he then waited up to twelve hours before police were called. come over here and have a seat please. reporter: and once again science would play a leading role in the prosecution s case. but prosecutors had a new witness. a star forensic expert. i have also testified before the house of representatives. reporter: in a 64-year career, dr. werner spitz has
as i walked by the house i heard an argument, a loud argument. reporter: another neighbor testified she heard cory and curtis really going at it and on a specific date, the night before valentine s day 2006. she happened to be out for a stroll. it actually i did cause me to pause. i guess i was listening to see if somebody was in distress. reporter: the prosecution s theory this go-round on how cory died remained the same. after a heated argument, the night before valentine s day, curtis suffocated his wife with a pillow in a fit of rage. he then waited up to twelve hours before police were called. come over here and have a seat please. reporter: and once again science would play a leading role in the prosecution s case. but prosecutors had a new witness. a star forensic expert. i have also testified before the house of representatives. reporter: in a 64-year career, dr. werner spitz has consulted on the jfk and martin luther king
Science would play a leading role in the prosecution s case. but prosecutors had a new witness. a star forensic expert. i have also testified before the house of representatives. reporter: in a 64-year career, dr. werner spitz has consulted on the jfk and martin luther king assassinations, as well as in other high-profile cases including those of phil specter and casey anthony. the appearance of the injury leaves no doubt that this is not a healing wound. reporter: in a darkened courtroom, spitz showed photos and talked about that cut inside cory s mouth. curtis had told police his wife had fallen in the days before she died, his explanation for that injury. but this expert said he saw no signs the cut was an old one. there s no evidence of healing. so this looks like at the time it was incurred. reporter: the abrasion on the outside of the lip and the cut inside indicated to spitz that an object, like a pillow, had been placed on cory s face shortly before she died. this