. >> the death of lacie peterson ♪ ♪ think of your fellow man, ♪ ♪ lend him a helping hand, ♪ ♪ put a in your heart.♪ ♪ you'll see it's getting late, oh please don't hesitate...♪ ♪ put a little love in your heart.♪ ♪ in your heart... ♪ ♪ in your heart... ♪ ♪ in your heart... ♪ ♪ in your heart. ♪ (vo) get zero percent financing for 63 months on select models, plus we'll donate two hundred and fifty dollars to charity. ♪ ♪ ♪ it feels good to be back. ♪ ♪ ♪ >> it's been 15 years since murder of a pregnant woman cap ate vaited the nailtion. her husband, scott, is on death row for her murder and murder of unborn son. this weekend, fox news channel will take a closer look in a special called interview with a monster. here is fox's laura engel. >> it was a case that gripped the nation and disappearance of a 8 month pregnant woman from medesto callle in db. >> they admit they are no closer to finding lacie peterson than they were christmas eve the day she vanished. >> search defined lacie peterson the northern california teacher with a big, broad smile drawing media attention 15 years ago. >>

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police admit they are no closer to finding laci peterson hasn't they were on christmas eve the day shed. the search to find laci pederson the northern california schoolteacher with a big broad smile drew immediate media attention 15 years ago. >> we've been through so much these last days that i'd like to make a plea to the person or persons who have my daughter. >> please bring our daughter moment home. >> reporter: attention quickly turned to her husband scott. who told family members and investigators he went firing morning of christmas eve saying it wasn't uncommon for them to do things on their own. >> being seven and a half months pregnant she's not going to want to go out in a boat, um, but simply a leisure activity to pursue that day and, you know, our plans. >> one month after had he disappearance, it was revealed scott peterson was living a double life. having an affair with a fresno massage therapist amber frey single mother went to police once they became aware that her boyfriend was quick becoming a prime suspect in the case. >> months of searchin searchingg came to crashi

the killing of lacy peterson. her husband is on death row. >> it is entirely too selfish of me to defend myself amongst these accusations. lacey is missing and all the media time should be spent toward finding her and all our energy should be spent toward finding her. unfortunately suspicion about me as risen to such a degree that people stopped to look for laci. and that's why i'm interested in being in the media now. >> sandra: that was scott peterson january 30th, 2003. for more on this we go to someone who covered this case from the beginning. laura ingle is here in new york. what stands out to you the most about covering this case? >> well, one of the things we bring up is a special set to air this sunday is a question how scott peterson thought he could get away with killing his wife and unborn son on christmas leave. he wanted to start a new life with a woman he was having an affair with, amber frye. the discovery of his affair with frye was the turning point in the case after laci peterson was reported mis

it's been 15 years since the murder of lacy peterson and her unborn son. her husband scott teeters in remains on death row for that heinous crime. he maintains his innocence. "fox news" laura ingraham shares her thoughts on that claim in a new special. >> do you see it from the other family members that desperate grief, that desperate fear. is she okay? does somebody have her? how do we get her? >> we have been through so much that i would like to make a plea to the person or persons who have my daughter. please bring our daughter home. >> i miss your beautiful smile and your fun-loving personality. >> and then you cut to what he looked like and what he sounded like. >> that's very personal and we will continue to look or her obviously. at times it's difficult to go on obviously. thanks very much. >> none of that felt right. none of it felt like this man was being truthful. molly: interview with a monster the scott peterson case gives insights experts and reporters who covered the story. they are sunday night at 8:00 p.m. eastern time right here on the "fo

the search to find lacy peterson , the schoolteacher with a big broad smile, drew media -- immediatetion. >> i would like to make a plea to the person or persons who have my daughter, please bring her home. >> attention turned to her husband. he told people he went fishing saying it was not uncommon for them to do things on their own. >> being a months pregnant, she did more to go out on a boat. it was a leisure activity that i pursued that day. that was our plans. >> a month later it was revealed that scott was living a double life. he had an affair with the fresno massage therapist, amber frey. she went to police once she became aware that her boyfriend was a suspect in the case. >>> months of search and hoping came to an end when two bodies washed ashore. their positive identification confirmed the family's worst fears, -- we will seek justice. >> scott peterson was arrested four days later. he was found guilty. the following year he was sentenced to death.>> appellate cases are still pending. in new york, laura ingalls, fox news.>>> hundreds of weapons are off the street doing ju

lacy peterson her body found months later and her husband scott peterson accused of killing her and their unborn child. he sits on death row in san quentin after all these years in spite of insisting he is innocent. we look back at the case 15 years later. >> it gripped the nation any month pregnant woman from modesto california 2002. >> they are no closer to finding her than they were christmas eve on the day they vanished. >> the northern california schoolteacher drew immediate media attention 15 years ago. >> we have been through so much i would like to make a plea to the person who has my daughter. please bring my daughter home. >> attention quickly turned to her husband scott who told family members and investigators he was fishing that morning saying it wasn't uncommon for them to do things on their own. >> she is eight months pregnant she doesn't want to go out on the vote but that is a leisure activity to pursue that day. >> one month after her disappearance it was revealed he was living a double life having an affair with a massage therapist the single mother went to police when

. >> reporter: one month after laci's disappearance, it was revealed scott peterson was having an affairfrye. the single mother went to police once she became aware that her boyfriend was quickly becoming a prime suspect in the case. months of searching and hoping came to a crashing end when the bodies of a baby boy and woman in maternity pants washed ashore not far from where scott peterson said he went fishing. their positive identification confirmed the family's worst fears. >> we will seek justice for her and connor and make sure that person responsible for their deaths will be punished. >> reporter: scott peterson was arrested four days later. in 2004 he was found guilty of murdering his wife and unborn child. the following year he was sentenced to death. both of peterson's appellate cases are still pending, both challenge his death sentence and request a new trial. in new york, laura ingle, fox news. arthel: the special, "interview with a monster: the scott peterson case," airs tonight on fox news at 8 p.m. eastern then again at 11 p.m. eastern. eric: should be fascinating. well, t