be there was an option at that point to maybe get that 15 years back >> in other words, wolf would sellout barbara any way he could to get a reduced sentence. of course, there's the uncomfortable fact that the two unprompted confessions he'd made to his ex-wives, confessions in which he'd portrayed barbara as a sort of black widow intent on having david killed. >> well, there are two versions that he gave to each of those ex-wives >> the stories were not entirely consistent, he said. besides, he said, barbara was at home in arizona during the night of the murder. how does he know that? >> a phone bill from her mother's home placing calls to arizona that night >> what's a phone bill of that age doing lying around somewhere where you could grab for evidence by the defendant?