. >> elizabeth? the shannons' 15-year-old daughter? it possible she executed her stepfather, the man that raised her, adopted her, provided for her? maybe daze ee and elizabeth were troubled, and when elizabeth hit her teens, watch out. >> david and joan didn't have the tools needed to deal with what those two girls dished out. it was boys, drugs, and violence. if she got angry with somebody, she would destroy something of theirs. >> that was hardly elizabeth's view of things. oh, she conceded she was no angel. she acted out all right, never denied that. but elizabeth always claimed it was the adults that made it ugly and hostile at home where arguments, not affection, were the family routine. joan admits now she was overwhelmed by the task of parenting elizabeth. realized she said she was manipulated easily and often by her daughter. >> and i gave up. i hate to admit it, but yes, i did. i gave up on that child. i didn't know what to do. >> so joan turned the task of parenting elizabeth over to major david, the military man, who did wh