MSNBC Dateline September 29, 2019 08:53:00
Mrs. somers, if you'll come forward to the clerk's desk. >> for six years summers had been the strongest most persistent voice arguing her father murdered her mother. prosecutor chad grunader. >> her testimony was huge. >> under oath, alexis told the same story she told us. >> why were you seeking information as to your mother's death? >> because i believe my fathered killed her. >> but now the defense was going to try to prove alexis wrong. in fact, they were going to question if there was a murder at all. and it would start by using some of the accusing daughter's own words. remember alexis'...