carla tryber: oh, god. kelly moore: she shot him. carla tryber: oh, god. oh, god. oh, tucker.e phone still recording, you can hear kelly ask tucker for the gun. kelly moore: give me the gun, honey. give me the gun. >> with the phone ckerstill recording you can hear kelly asked tucker for the gun. >> give me the gun, honey? >> why? >> then told shane is still alive barely tucker reacts with an obscenity. an obscenity. when detective young saw the video he knew right away. >> this was a very different set of circumstances then we were told during the initial interview with tucker. >> during his investigation young discovered just two hours before he was killed shane called the sheriff's office saying he feared for his safety. his safety. remember, tucker told the police she didn't know how the gun worked. that she was surprised when it went off. turned out she had already fired it that very day. very da when detective rtinyoung asked tucker about that hours after shooting shane she seemed caught off guard. >> your uncle called reporting that you fired a gone on the property toda