the jury to hear that tom had a hot temper. that he was volatile. anger would ve been most obvious motive. simply lost his temper? anger. gun nearby. bang. right. reporter: to prove it, the witness ear-witness you could say, nick glover, the neighbor whose story was reported on television and helped reopen the case. i heard him saying, oh my god what have i done, oh my god what have i done. reporter: nick was 15 at the time. he said he remembered crouching down inside his house, under an open window, listening to tom speak to people in his driveway. you can hear one of them, i do not know who it was, um say what, what do you mean? and he proceeded to say, i shot my wife. reporter: nick said he knew it was tom. he could see him out the window.. how certain are you that the voice you re hearing is tom fallis voice? i am 100 percent. reporter: there was more. nick s mom, kathy glover,