the killer of shirley carter is in this room. and it's not jason carter. as for motive, wandro suggested perhaps bill and shirley were having trouble in their marriage. maybe she had even threatened to leave him. >> she had to get permission for everything. >> reporter: jason's wife testified that shirley complained to her that bill was too controlling. >> whether it be to make a hair appointment or to help with the kids whatever it was, she had to get his permission before she could do that. >> reporter: she said shirley couldn't even do the little things she wanted. >> the night before shirley's death, she turned and looked at me and she said, "the one thing i'd like to be able to control is the way i mow my yard, and i can't even do that." >> reporter: wandro said it all must have come to a head on that june morning. >> and something happened on that friday that made him snap. and he is the one that killed his wife. >> reporter: finally, more than two years after shirley had been shot to death. and after two weeks of trial, the epic battle between father