laci peterson, the beaming young mom to be. please, please, let her come home to us. keith morrison: prosecutors speak out in an in-depth television interview. you put so much of your life into it. it stays with you. keith morrison: laci s husband. finally hear the story he told. his rarely seen police interrogation. we couldn t find anything wrong with this guy. he was that charming. keith morrison: and surprising details from the other woman who helped uncover the truth. it s still affects me emotionally. keith morrison: did scott peterson kill his wife? i do not believe he did. i mean, really? who else could have done it? i m glad you asked that question. keith morrison: once upon a time, in a small california city lived a sweet pregnant woman with a radiant smile. and outside of friends and family hardly anyone knew her name. she would never know, of course, how famous that name of hers was about to become. we have no indication, no significant leads at this point. keith
the day after my baby shower that she threw for me, she took a pregnancy test and called everybody. very early, very early the next morning. keith morrison: soon enough, the petersons learned they were having a boy. they ready the nursery and decided to name him conner. laci was nearly eight months pregnant by christmas, the last christmas before little conner was due. you were supposed to have a christmas eve dinner, is that right? yes, i was. she was having christmas day. and i was having christmas eve dinner. and that was when he called. it was close to 6:15. he called and asked if laci was with me. and i said, no, she s not here. well, she s missing. keith morrison: and that was the beginning, christmas eve 2002, laci peterson with her bright smile was nowhere to be found. coming up, the missing mom becomes national news. there s a $500,000 reward.
they readied the nursery and decided to name him conner. laci was nearly 8 months pregnant by christmas, the last christmas before little conner was due. you were supposed to have christmas eve dinner. is that right? yes. i was. she was having christmas day. and i was having christmas eve dinner. that was when he called. it was close to 6:15. he called and asked if laci was with me. and i said, no, she s not here. well, she s missing. reporter: and that was the beginning, christmas eve 2002. laci peterson with her bright smile was nowhere to be found. when we come back, the coming up, the missing mom becomes national news. a $500,000 reward. we thought somebody kidnapped her. the first clues, her dog, dragging his leash. her neighbors robbed. her husband, asking for help. did he seem frantic or worried? a little bit. when dateline continues. tis y who invented car vending machines and buying a car 100% online. now we ve created a brand-new way for you to sell your
and we gave him our permission. reporter: there was a big wedding in the summer of 97. and by the turn of the millenium scott was a fertilizer salesman in modesto. laci a substitute teacher. his job took him on the road a lot, but they were happy. did the three of you get to know the two of em together much before uh-huh. i thought he was a great guy. we thought they were great together. she was always happy. it was almost a joke of, gosh, does he have a brother? reporter: though laci struggled to get pregnant, after nearly five years of marriage that came too. the day after my baby shower that she threw for me, she took a pregnancy test and called everybody very early. very early the next morning. reporter: soon enough the petersons learned they were having a boy. they readied the nursery and decided to name him conner. laci was nearly 8 months pregnant by christmas, the last christmas before little conner was due. you were supposed to have