it began on friday the 13th. one disappearance. >> someone has her. >> then two. "dateline" takes you inside a gripping double mystery, but first a world premiere event. an nbc exclusive.

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well ♪ ♪ i'm going to know the power to leave you i'm aiming for control of this love ♪ ♪ of this love text me touch me don't be sweet love me love me please retreat let be the girl under you ♪ >> you can see the full video online. now, a "dateline mystery" and don't watch alone. this is an important message regarding a missing juvenile at risk. amber leann dubois. >> a teenager disappears. >> please. >> amber never made it and i knew right then someone had her. >> kept us up at nights going over in our head what is happened in front of the school.

>> then another gone. >> she needs to come home. >> there's a lot of desperation. maybe she's tied up somewhere. maybe she's being held captive. >> two missing girls, one man with a secret. >> did you get any sense of the sort of personality you were dealing with? >> yes. psychotic. came up and he went right to here to the edge and says right there. >> two families, two mysteries, two journeys for justice. >> it's a lesson to be learned from amber then i want it out there. ♪ on the evening of february 12, 2009, in a hillside house north of san diego, california, the negotiation was

finally complete. the girl had won. >> i made her write a one-page letter to me, and she made it two pages, repeated herself multiple times to make it longer. i'm like, okay. >> she pestered her mother carrie and her mother's boyfriend at the time, dave. >> all kids have their own things that they're into. amber loved animals. >> she had been campaigning for it during her regular and frequent visits with her father mo. >> she probably had it named probably a month before she even got it. >> what was she going to call it? >> nanette. it was a french name. >> which made per secretary sense to her since her surname was very french, dubois, amber dubois. it was to be her lucky day. the day she walked those few familiar blocks from her home in escondido, clutching her mother's $200 check and receive in exchange, a lamb of all things. she was buying it as part of her

high school's future farmers program. and tonight as she drifted off to sleep for the last time, every good thing still seemed possible. >> come home, please. >> none of it had happened then. >> there's not a single day that goes by that i don't break down and cry for hours. >> the extent of the evil hadn't occurred to the sheriff yet. >> all of a sudden there's a safe zone that's been taken away from you. >> the d.a. never imagined, she'd say -- >> this case rocked san diego county. >> but this was before all that. and amber was just going about the business of being 14 and slightly quirky. >> amber was a free-spirited kid. she loved reading and writing, and she didn't like the normal things, you know, that kids like. >> she had her own taste. she liked to take her time.

come on, come on. she's looking at the flowers, the bugs, whatever. she was never in a hurry, ever. she wanted to see the world how she wanted to see it. and she did. >> no interest in boys yet. no girly things either. >> we would have to order her clothes for school online because she hated shopping. >> didn't want to go shopping? >> god, no. that would be torture for her to go to the mall. >> what did other girls think about her? i mean, you know, they're so cliquish at that age. >> oh, she had her clique. it was a very, very small clique. one small group of very close friends that were all goofy nerds like her basically. they're all a bunch of bookworms. >> she read the whole harry potter series in two weeks. >> c'mon! >> all of them. >> show couldn't put a book down. she would get a 300-page novel. i would have to go in her room she was under the blanket she was under the blanket reading. >> she probably read more books in a year than i read in my whole life. >> amber, say hi. >> she was just beginning high

school. she made plans to make extra courses, graduate early and she vowed never to miss one day of class. >> i'm like, are you sure? you never want to miss school? what's wrong with you? i would do anything to miss school. she wanted perfect attendance. >> she wanted to be animal behavioral scientist. she wanted to study animals in depth. >> she had kept guinea pigs, fish and birds and dogs and rats. she began riding lessons at 3. by 9, she owned a horse. so when the school offered future farmers of america, of course, she joined. >> they have a huge, huge farm on the campus, and they allow students to purchase and raise farm animals. and, thus, the lamb and the happy walk to school on friday, february 13th. >> and i remember driving to work laughing going, i know i'm going to have to take care of that lamb. >> the weather was drizzly that winter's day, mid-50s.

it was late in the afternoon when dave noticed, well, nothing. an absence. >> i was at the house and went, wait a minute, why isn't amber here, because her mom was still at work. i looked at my watch. she should have been here an hour ago. i called her mom. >> i wondered where she was at. i got on her cell phone and said, call me. >> dave got in his car, drove to the school. >> so i figured maybe she went to play with her lamb and just lost track of time. >> but then he found one of her teachers and asked if he had seen amber. >> and mr. rayburn looked up at me and said, she didn't show up today. i was very surprised she wasn't here. this was her last day to pay for her lamb. i said, no, no, no, what are you talking about? i gave her a check before i left the house this morning. and that's when sirens went off. i called carrie and told her mr. rayburn said she wasn't there, and carrie at that point, you know, kind of went into panic mode. >> he says amber never made it, and i knew right then

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to hear more of karen's story, visit lyrica.com. ♪ amber dubois, 14 years old, was a young woman of established habits. >> she got out of school at 2:45. i would give her until 3:30 to be home so she could hang out with her friends. >> dependable was amber, predictable even. >> she was always home by 3:30, always called. >> then came friday the 13th, 2009. when she wasn't home. the day her mother carrie

mcgonigle discovered she hadn't gone to school at all. c carrie called her ex-husband. >> i started looking around the school, dumpsters, anything for her backpack. >> what could they do? printed flyers. called her friends. >> i had 15 people show up right away. we started going door to door. >> as did the police. >> they were out with a black and white picture, a faxed picture of amber. i handed them a color flier and said, here, this is a better picture of amber. >> that's who she is. she's been missing since friday. >> escondido police combed the neighborhood, the school, the creek behind it, worked all night, said captain bob benton. >> have you seen her? >> it's now saturday morning, and still no sign of amber. very concerning to us. >> and then later that day, a break. somebody had seen her near the school. >> describing how she had a

hoodie on, that it was drizzly. he described her as walking hurriedly so he thought she was late to school. >> then someone else had seen amber near this fire hydrant with a boy. >> basically i said, there's amber, made notice that she was there. >> the boy was described as tall, about six to eight inches taller than amber, doughy looking and dark complected. >> who was that boy? was amber with someone? a classmate reported seeing amber in downtown escondido saturday the 14th but local surveillance camera picked up nothing then sunday the 15th a second classmate said he saw her walking with a boy. >> the sighting on sunday night was deemed to be as reliable as could be. >> each sighting sent hopes soaring. but not in carrie because she knew amber was not a runner. >> i'm like, it wasn't her. i'm telling you right now it wasn't her.

she would not be this close to home and not come home. >> day and night the search went on. the fbi joined in. volunteers did, too. searching outbuildings, vacant sheds. >> we don't know what's going on here, but we do check that out as a matter of course. >> search and rescue teams scoured miles of brush-choked ravines, hidden places around rocky hills. >> also in this area, what we found out was a place that a lot of kids go to party. it's called the caves. it consists of a real rocky area, a mountainous area. >> but no sign of amber. >> this has been going on now for several days, so as it goes on, we get a little more worried. >> what was it like for the two of you as those days kept going by and there was no word, nothing? >> life stops. nothing matters anymore. >> we don't sleep. we don't eat. >> you go into great depression some days and the other days you can see some kind of light. >> the police sent up a task force, assigned search teams. volunteers came out, hundreds of them. >> i have three daughters myself.

and i just cannot imagine what those parents are going through. >> i look around and i see a bunch of flickers of hope is what i'm seeing. >> someone has her. she's not just hiding from me or hiding from the house. someone has her. >> it kept us up at nights, going over in our heads over and over of what happened that morning in front of the school. >> if amber was alive -- and that was a big if -- where could she be? >> if she left, she left with somebody she knew. so who was that person? >> if you know where amber dubois is tonight -- >> they told the amber story on "america's most wanted." she was on the cover of "people" magazine. and what happened? suddenly sightings coast to coast, hundreds of them. >> there was one girl who looked so much like amber that she had to keep carrying her i.d. on her because law enforcement would stop her so many times. i'm not amber. she had to show the i.d., i'm not amber. captain benton's team ran down

every tip in every state, 1200 of them, 500 interviews, even though -- >> the more we investigated it, the more we came up with dead ends. >> and carrie ran her own private task force of one. >> she would have a list of predators, and she would take a dozen a night. >> we had a call from an apartment complex manager that a female was yelling at individuals in the apartment complex. and when officers arrived, it was carrie mcgonigle yelling at registered sex offender, and the sex offender was actually complaining to the apartment manager and the apartment manager asked us to ask her to leave. >> the threat of arrest didn't scare her. >> good, it will get the word out there. go ahead. >> but then the weeks became months, and ginning up hope got hard to do. the volunteers once a small army, thinned, stopping coming.

>> we had days when we had hundreds and hundreds and hundreds of people. but then it would steadily drop down to points where there were weeks when we had like eight people show up. >> four months after amber disappeared, the volunteer search center closed. on february 13th, 2010, they marked a somber anniversary. >> our biggest fear is going our entire careers, if not our lifetime, and not knowing what happened to amber dubois. and the likelihood of solving this case was very limited, if at all. >> and then -- >> the search is on this morning for a missing 17-year-old poway girl, chelsea king. >> -- it happened again. another mystery and another anguished mother. >> please just help us bring her home. >> she's a great kid. >> she's such a good girl. she needs to come home. [ lillian ] i would get hit with that pain of sensitivity.

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♪ thursday, february 25th, 2010, just over a year since amber dubois vanished. another teenager was missing, ten miles away in a suburb of san diego. >> i'm like, how can this happen almost a year, you know, same month? i'm like, how can it happen? >> it began in a parking lot near a popular local hiking trail. >> we get calls oftentimes about juveniles, girls, you know, runaways. >> two san diego county sheriff deputies responded to a call from panicked parents. >> this one i think made the

hair stand up a little bit on the deputy's neck. >> 17-year-old chelsea king, straight a student, college bound, had come to rancho bernardo park as she often did at 2:00 in the afternoon for a brisk five-mile run. broad daylight, a well-known, well-used, safe hiking trail which skirted the marshy banks of a long shallow lake. but then she was late, didn't answer her cell, didn't return her parents' messages. chelsea's dad called the cell phone provider, which looked up the tower her signal was hitting, led her dad to her phone, which was inside her locked car in that parking lot. >> and just finding her car, it was unusual. >> it was not just a teenager out here with her boyfriend. it made me think that maybe something had gone wrong. >> it certainly had. >> chelsea king is described as having strawberry blond hair. >> and now another public nightmare began.

>> anybody out there, if you know anything, please just help us bring her home. >> she's a great kid. >> she's such a good girl. she needs to come home. >> word got around fast. >> we immediately felt what they were going through. >> i was ready to get in my car and go. i'm like, i want to go help search. that was my instinct. >> san diego county district attorney bonnie dumanis was one of the first to get the news. >> everybody began thinking of amber right from the beginning, i think. and i think that's what made everybody so scared about chelsea. >> why? >> knowing that this had happened, you know, with amber. >> amber, who was in some ways so similar. >> beautiful girls, both 5'5", both light complected. >> that very thursday afternoon, within hours of chelsea's disappearance, friends fanned out around the park, the neighborhood around it, even total strangers joined in. and just along here, perhaps two miles from chelsea's abandoned car, between a creek bed and row

of houses, as the cold settled in and the daylight failed -- >> one of the people that were coming from the neighborhood to search came across a pair of underwear and socks that did not appear trampled or discarded. they were right in the center of the walking trail. >> could have been anyone's, of course, but how did they get here? >> and they seemed to be freshly there. >> was there a connection? sergeant dave brown sent a detective out to the trail. >> right along this trail here somewhere. >> right along this trail, just a little bit further down. the parents said, yes, that's the type that she wears. >> was there a clear indication that there might be dna? >> yes. there was a small amount of blood that was found. >> it didn't look good. they sent the clothes to the dna lab for confirmation and deployed a virtual army, helicopters with infrared tracking, search and rescue teams. hundreds of people began beating the impossibly tangled thicket

around thousands of acres around rancho bernardo park land, and divers made their way through the lake and its underwater forests. >> you can see the shoreline over there and the shoreline over here, and it's very thick. the trees in the middle are hidden by the deep water. >> sergeant don parker led the operation. >> you can see the difficulty. for instance, just here, if you take one step, you have to part the brush, and, look, you take another step, you have to part the brush. that's the way it was that day, that thursday night. >> night fell. still no sign of chelsea. where was she? on these miles of trails in this vast dark park. >> there's a lot of places where you can hide somebody. that's our problem. and as you can see, this is a very, very expansive area. there's a lot of acreage here. >> by friday, the day after chelsea's disappearance, there were canine units, trucks, four-wheelers. >> we had hundreds and hundreds of folks coming from all over southern california. people were up for hours and

hours and hours. >> county sheriff bill gore manned the phone. >> there were literally calls from the agent in charge of the fbi saying i got 25 agents. where do you want them? border patrol got a call, and boom, they were there. >> the fbi canvassed some 300 homes around the park and its lake. police ran down 600 tips. the area's known sex offenders were tracked down, as well. and by that weekend, two days missing -- >> we're looking for a 5'5", 115-pound girl. >> -- thousands came to look for chelsea, amber's parents among them. >> it was huge. i mean, the line of people, eight people wide went around the whole building all the way out to the street. >> but this was not like the search for amber. there were no sightings of chelsea. >> this case was pretty specific. we believed that she was out and went jogging in that park. and the fact she didn't come back leads you to believe there was some type of foul play right from the beginning. >> which is why the sheriff

called dave brown and his team of homicide detectives. >> there were certain things about this missing person case that concerned the people that were investigating it. one of them was the clothing found, found really far away, a couple miles from where her car was found. there's no rational explanation for it. >> no rational explanation except foul play. and then the next day, the second discovery. it was a mile from the place where the underwear and socks were found near a running trail. a shoe, which appeared to be the very shoe chelsea was wearing in this photo. >> it was laying on the brush on top. it looked like someone either had thrown it or dropped it, right there. >> the way these things are so far apart from each other, we figured foul play. whether or not she's deceased or whether or not she's just being held somewhere, we can't answer that. >> the chance they'd find chelsea alive was growing slim. the chance they'd find her at all was not much better. now there were two girls gone.

but where? >> it was more of a hope that they were somehow connected. >> chelsea, amber, might there be a link? police are about to get a break. >> and we need to find out everything we can about this person. [ terri ] my antidepressant worked hard to help with my depression. but sometimes, i still struggled to get going, even get through the day. so i was honest with my doctor. i told him i'd been feeling stuck for a long time. he said that for some people, an antidepressant alone only helps so much and suggested we add abilify (aripiprazole). he said that by taking both, some people had symptom improvement as early as 1 to 2 weeks. i wish i'd talked to my doctor sooner. [ female announcer ] abilify is not for everyone. call your doctor if your depression worsens or you have unusual changes in behavior, or thoughts of suicide. antidepressants can increase these in children, teens and young adults. elderly dementia patients taking abilify have an increased risk of death or stroke. call your doctor if you have high fever, stiff muscles and confusion to address a possible life-threatening condition. or if you have uncontrollable muscle movements,

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in the back of your mind, you're hoping that someone has her held against her will. and so the detectives don't want to go home. nobody wants to go home. nobody wants to sleep. we have to find her. >> it was like some nightmarish deja vu. amber dubois vanished in san diego county. a search turned up nothing. then a year laettner a neighboring town, another teenage girl was gone, another search going nowhere. were the two connected? that's what the cop who had searched for amber wondered. >> it was more of a hope that they were somehow connected and would help us solve the amber case. >> and so he watched as search and rescue literally beat the bushes and probed the treacherous muddy water. and detectives in suits worked the neighborhoods nearby. >> find who her friends are, where she was, talking to anybody and everybody who might have been in that park that day, hoping to find something. >> and they were trying to make sense of evidence scattered around the park.

chelsea's car was parked here, underwear with a slight stain of blood had been found on a trail here, a shoe a mile away. >> in the back of our minds we know it's a matter of time before we -- we may get the results from this dna. and that will also prove if those are actually her items of clothing and shoe. >> then three days after chelsea disappeared, more clothes surfaced not far from where the first items were found. the mate to the first shoe and a sports bra here in a ditch. >> the area that we had searched and didn't find anything of value. >> what did you think when you found that stuff? >> there was an idea that maybe articles were being randomly thrown or scattered to throw us off of a trail or throw us off a lead. >> was chelsea still in that park? was she dead or alive? and one more question -- had anyone else been attacked in that park? and, sure enough, a student home

for the holidays, also a jogger, reported that she'd been attacked while running on a trail near where those first items of clothing were found. that was december, two months before chelsea vanished. what's chilling is it happened literally within feet of a whole row of houses. but what was good was the young woman could provide a description of her attacker and what he tried to do. he was white, she said, maybe 25 or 26, stocky, muscular, brown hair, military type cut. she was running along the path. and this guy tackled her from the side, pinned her down and she understanding what was coming said, you'll have to kill me. he said, that could be arranged. but she knew tae kwon do and she caught him in the nose with her elbow. he reacted and she wriggled away and ran like the wind out of there. other witnesses offered a vague description of a man they'd seen in the park the day chelsea disappeared.

white male, heavy-set, did they have a serial attacker on their hands? was this part of the park his territory? it was now sunday afternoon, february 28th. chelsea had been missing for three days. how do you deal with the parents? >> i didn't have any answers for them. at one point they asked for a tour of various items that were found. >> so sergeant brown showed the kings where some of the clothing was found. >> we got to positions where we could point it out. you know, that's where we found this. that's where we found that. >> now, that's when the detective's phone rang. the dna came back. >> the dna on the clothing, it confirmed it was chelsea's. but the test produced something else, too. the most important discovery yet. inside that clothing was a second person's dna, and the lab got a hit. >> and it came back to a sex registrant. >> chelsea's parents were standing beside him. did you tell them that? >> no, i did not. >> but the tour was over. sergeant brown gathered his team. >> we have the name and a prison

number. and we need to find out everything we can about this person. >> the dna match was to a convicted sex offender named john gardner, a man who had spent five years in prison for a sex assault back in 2000. >> is it a mixed blessing that it comes back to a sex registrant that's done time in prison? that's, you know, that's not a positive note, but at least we knew who and where it was. and we knew we were going to close in. >> the search for gardner began that afternoon. >> we sent undercover people to watch the houses that might be where he lives. >> they approach carefully, watch from a distance. it was a slim chance, but what if he was holding her, saw the cops, panicked? >> and in the back of everybody's mind, she's alive and you think maybe she's tied up somewhere, maybe she's being held captive, and we're going to find her and we're

going to find her tonight. >> but she wasn't in any of those houses and neither was he. instead, they found gardner in a bar on the north side of the lake in the very park where chelsea had been running, hernandez hideaway. and this was weird. gardner's clothes were wet and muddy, as if he had been wading in the lake for some reason. they took him to the sheriff's lockup, sent lineup photographs to the young woman now back at college who had survived the earlier attack in the park. >> and she picked john gardner instantly. >> what had this man with the wet and muddy clothes done with chelsea king? and, for that matter, did he know anything about that other missing girl, amber dubois? the interrogation begins, and police are in for a ride. >> rolled back in the chair, did a full-on belly laugh, laughed for an extended period of time. you eat activia everyday?

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he was a young white male, burly, short cropped hair, matched perfectly the descriptions of the suspected attacker here in rancho bernardo park. now john gardner, 30 years old, was behind bars. how did he react to being arrested? >> very unhappy. wanted to know why he was being arrested, believed the accusations were false. >> detectives pat o'brien, scott enyard, mark palmer confronted gardner in an interrogation room. >> we believe and hoped she was alive, so we kept asking, where is chelsea king? >> how did he respond to that? >> he denied everything. he denied being in contact with her ever. he basically said, the only information he had was from the television. >> but you were able to say, we have your dna. >> we did. we approached him and said we had his dna, and he said we were liars.

>> what was his demeanor? >> calm one minute, angry on another, almost crying another. >> he thought part of it was humorous to him and part of it was just offensive, how dare we even consider him as a suspect. he actually made it perfectly clear that he hated law enforcement. he said he was treated poorly while in the department of corrections and he hated cops for that reason. >> gardner had been arrested here at this bar called hernandez hideaway. drunk, wet and muddy. he told the detectives he slipped on some mud and hopped in the lake to rinse off. >> first question is why is he in the lake? hernandez hideaway is on the north end of lake hodges. >> but the evidence, those bits of chelsea's clothing, were found on the south end of the lake. >> so now we're thinking, has he placed chelsea somewhere on the north side of the lake and he's going to retrieve or see if she's still there? >> and you're looking for clues that he's going to give you either verbally or nonverbally, or whatever.

>> the questioning was strictly limited to this -- where was chelsea? >> our sole purpose was to find chelsea king alive and get her some kind of help so we couldn't go into too much detail about why and what you were doing. you know, we kept trying to keep him focused to find out where is she at? what did you do with her? >> their suspect wouldn't budge. they kept prodding. >> so scott's got a photograph of chelsea king and continually pushed it in front of him. he would glance at it, he wouldn't look at it very long, but then he would continue deny, deny, deny. scott would keep talking to him, where is she? where is she? and then he would go off on some tangent. >> did you get any sense of the sort of personality you were dealing with when you talked to him? >> yes, psychotic, had some major anger issues. >> they left the room for a few minutes, watched him on a video monitor as gardner looked at a photo of chelsea.

>> and basically called chelsea a bitch, why are you doing this to my life and flipped the paper away. >> and then out of the blue in midinterview said the detectives gardner surprised them. he brought up a name. the name of a girl who had disappeared more than a year earlier. >> a photo of chelsea is sitting in front of him. at some point he says, you guys, in essence, are probably going to try to finger me for that amber girl's disappearance. >> i asked where she was, and he played it off. he wouldn't even pronounce her last name properly. >> and at that point the officer said gardner began laughing hysterically. >> he rolled back in the chair, did a full-on belly laugh, and laughed for an extended period of time. >> at that point you knew you weren't getting anything out of this guy. >> correct. we definitely knew he was guilty, there was nothing he could do at that point. >> nothing but redouble the effort to try to find chelsea. still, chelsea's parents

couldn't help but hope that the arrested gardner brought them a step closer to finding their daughter. >> it gave us hope that chelsea is still there, we just have to find her. so i mean, i'm not going to think about who he is, what he is. >> there's an incredible amount of rage that boils, but right now we're focused on chelsea. >> rage? yes, of course. but imagine what brent king might have thought when he learned just a little more, as you will too, about the history of mr. john gardner. >> the man was evaluated ten years previously by a board certified psychiatrist who found that he was a danger and a continuing danger to the public, and apparently that warning was not listened to. i was shocked. >> who was john gardner really? good friend? >> john told us what had happened. >> or sinister offender? >> this was a man who started out being violent.

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sunday, february 28th, 2010, three days of searching. no chelsea king, but there was an arrest and john gardner in custody was at least some kind of comfort for chelsea's parents. >> i was relieved that this monster is no longer out there and able to do this to anyone else. >> who was john gardner? by the time they arrested him, police had assembled some disturbing information. this would not go down well in san diego county. >> he had been a convicted sex offender. the initial crime was serious. he was convicted for six years for a sexual assault in 2000, i believe it was. >> in fact, he had served five years of that sentence for sexually assaulting and brutally beating his 13-year-old neighbor. this is where in march 2000

gardner became a sex offender. it was daytime, his own mother's house. he was 20 then, invited a 13-year-old over to watch videos with him. he began groping her, she begged him to stop, he intensified his attack, she resisted, he began beating her severely. the incident left her so traumatized, her family had to move to a different part of california. but gardner denied it all. he even blamed the beating on the victim's mother. jennifer brandt was a friend of gardner's back then. >> i remember john had come up to the mountains and told us what had happened and that he was going to have to go to court for this. >> they went to high school together in the san bernardino mountains 100 miles from san diego. >> he told us it wasn't him. it was -- the girl had a boyfriend and he thought that the girl just didn't want to admit to her parents that she was having sex with her boyfriend because it might have gotten her in trouble, so she was going to blame the neighbor, being john.

>> she and their circle of friends all believed him, she says. the john gardner they knew was a good friend, always helpful. he confided in her that he had been diagnosed as bipolar. >> he did display, i guess, the symptoms of it. really high highs and really low lows. and on one of the occasions that he was in a low, he started telling me about some things that happened in his childhood, that a family member had actually molested him. >> gardner and his mother moved to san diego from the mountains in 1998. according to court records, he was working at a sporting goods store when he was arrested in 2000. he was about to turn 21, had wanted to become a math teacher. his arrest put an end to those plans. gardner always proclaimed his innocence but agreed to a plea deal, telling his probation officer three attorneys warned him he'd get reamed if he went to trial. but before he was sentenced, the court ordered a forensic

psychiatrist to evaluate gardner to help determine whether he should receive probation or how long he should be imprisoned. >> it was a very serious offense, even though it was the first time. this was a man who started out being violent. >> dr. mark kalish is a forensic psychiatrist who's read the documents on this case. he's also a colleague of the doctor who wrote the evaluation. that doctor, matthew carroll, decline "dateline's" request for an interview. >> it's a rare case where the individual starts out in their first offense by assaulting the victim. and so that was a warning sign to dr. carroll that this was not the typical case. this was a man who was on a very, very steep trajectory for future violence. >> the psychiatrist's warnings, as noted in gardner's probation report, were dire. "the defendant manifests significant predatory traits to

underage females. the defendant would be a continued danger to underage girls in the community, and it would be unlikely that the defendant would be amenable to treatment." the psychiatrist recommended the maximum sentenced allowed by law. >> in my experience, i don't think that i've ever seen a psychiatrist make a louder and clearer call. >> and the doctor who evaluated gardner was apparently so concerned about it, he followed up his report with a phone call to gardner's probation officer with yet another warning. "the defendant does not suffer from a psychotic disorder," he said. "he's simply a bad guy who is inordinately interested in young girls." such calls are rare, says dr. kalish. >> when psychiatrists become desperate, we pick up the phone. >> yet, despite those warnings, the prosecutor, probation officer and judge all decided

that john gardner should get a midlevel sentence of six years rather than ten years, which would have been the maximum sentence under the plea deal. >> i have reviewed this case with the glasses of having been a prosecutor, having been a municipal court judge, superior court judge and now the d.a. >> bonnie dumanis is the san diego county d.a. she was not the d.a. in 2000 when this crime occurred. we asked to speak to the prosecutor in that case but were told that dumanis would answer our questions. >> what happened in this case was appropriate. under the law that existed -- >> this was what, a midrange sentence as opposed to the max possible. >> that's right. >> that was in spite of a psychiatrist's report that said this guy is really dangerous and he always will be dangerous. now, why would that not have jacked it up to a full ten-year sentence? >> first of all, there were two psychiatric reports. >> right. >> one was saying he was a danger. one was saying that he was

treatable and recommended inpatient treatment for 90 days and probation. >> but this is a guy who had seen him once in five years. >> but he examined him just as much as the guy who saw him for an hour. he had actually treated him. >> but that report was only one factor in the sentencing decision. there were glowing character references. "i know in my heart of hearts john gardner is a rare and good breed." "i dated him for a year and a half." "john is the one person who made me feel completely safe in the world." "i believe john will become a great man, husband, father." >> he was 20 years old, no prior record, and the presumption of the law was the middle term. >> six years. out after five. and now this. but the second-guessing went on hold for the moment because just now there was a far bigger issue -- what had john gardner done with chelsea king? was she still alive?

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as john gardner sat in the san diego sheriff's lockup, sergeant dave brown, working the chelsea king case, took an urgent phone call. >> the investigators from escondido called us.

>> investigators on the amber dubois case in the neighboring town of escondido had a question -- was your guy also our guy? >> i sat in my car and had a teleconference with them. >> the arrest of john gardner set off a small earthquake among the cops searching for amber. >> they've been sending e-mails to me trying to get ahold of us. we were a little busy to talk about their case. >> but they kept talking even as they ramped up the search for chelsea around rancho bernardo park. hopes that she was alive flickered but held. it was tuesday march 2nd, day five of the search for chelsea. that day her parents worked on plans for a vigil, a sign no one was giving up. >> it's just going to be one more thing about chelsea, when she comes home, she's going to see and want to give back 1,000 times over. >> if amber's parents hadn't given up, they said, neither would they.

the kings met them when they came out to help search. >> the strength they display is driving us. you know, when mo looks me in my eyes and says, don't worry, we're going to find her, that's strength. >> yeah. >> out in the park tuesday morning, search and rescue teams continued to search the brush and waterways. >> they would do shoulder to shoulder, go underwater, look, come back up, check to make sure that they were in a line because they have to do it systemically. >> how many times did they do that? >> i want to say we did this six or seven times we searched this entire area here. >> the shoreline here had particular interest because chelsea's shoe had been found just a few feet from here. >> so the shoe was basically in this area. >> just laid on top of the brush. >> then from here we go north straight to the water. >> that afternoon downtown the homicide team was called to a meeting with d.a. bonnie

dumanis. >> once he was arrested, we knew that there was going to be a prosecution. >> dumanis by that tuesday had few illusions left about finding chelsea alive. >> the circumstances were such that we felt it was a murder case and a potential death penalty case. >> thus, the meeting with homicide detectives. what case are you going to present? >> we charged him with murder, and we still didn't have a body. >> and then midmeeting, that's when it happened. >> the detectives were presenting the case when everybody's pager went off, and everybody's heart sank. >> it was chelsea. rescue divers had found her body. >> one of the dive personnel was in a boat and beached the boat literally right here. and then him and his partner actually started walking this

way, and shortly thereafter noticed an area a little bit further this way. and that's when chelsea was found. >> it was that small area which had been searched so many times, the place the shoe was found, 15 feet from the edge of the water, a shallow grave. a little this shine was created there, a patch of decorated earth. sheriff gore delivered the news. >> that was probably the longest drive i've ever had in my life to go to the king house. and it was just news that nobody in law enforcement ever wants to deliver. it was just heart-wrenching. >> it's the worst day of our lives ever, and there's no deeper pain that we'll ever feel

again, so i -- it was the depth of despair as if it was right now. >> what type of creature would do this? >> not far away amber dubois' mother carrie heard the news too. the reaction was almost physical. >> when the body was found, i started panicking. i'm like, i don't want to bury amber, you know. i'm like i'd rather have her missing than have to bury her. that's when it hit me really hard. >> that evening what was to have been a search vigil for chelsea became a memorial instead. thousands came. >> she's my angel forever. i want to thank you, and chelsea wants to thank you. keep her spirit alive for us. >> john albert gardner. >> gardner was in court the next day charged with murdering chelsea king while committing a rape. he was also charged with assault with intent to commit rape for the attack on that student back in december. >> mr. gardner wishes to enter a plea of not guilty to both counts. >> amber's father was at the

hearing. afterwards he worried what this meant for his daughter. >> in the back of our heads, we are kind of concerned that there is a connection. >> and though no one had proved john gardner's guilt, around san diego, he had become infamous, public enemy number one, and as people here learned more about that 2000 case, the psychiatrist's report and gardner's failure to reveal where he was staying, the outrage boiled over. >> as i think pretty much all of san diego county is completely disgusted with this. >> during the week before the attack on chelsea, gardner had been staying with his mother, a few blocks from the park in which chelsea was murdered. in fact, it was the very same house in which he attacked that 13-year-old back in 2000. but when police had gone around the neighborhood looking for sex offenders, they did not come to this house. no reason to. >> he was actually registered at his grandmother's house in lake

elsinore, so gardner would not come up in that search because he was registered in lake elsinore. >> and that was 50 miles away, another county. >> the mother never forced john to report it. he may have met all the guidelines only coming down a certain amount of days, but people felt threatened not knowing that a sex registrant was living that close to them. >> once the news broke, gardner's mother seemed to be trying her best to hide from the media, from the public anger. anger so strong someone spray painted these words on her house, holding her, along with her son, accountable for chelsea's death. >> if i was them and i saw that, i would move out, move out of the area. >> and when some of the gardner's friends came by to paint over those words, they were driven away. >> get the hell out of here! i can see the sympathy you have for her. i can see it in your eyes. get the hell out of this neighborhood.

you don't belong here. >> in the midst of that public shock and anger, detectives in the chelsea case again considered those calls and e-mails from their fellow cops that had been looking for amber dubois. was there a connection? maybe. >> we realized that john gardner was a resident of escondido and was one of our registered sex offenders back in the time that amber disappeared. that's when the light bulb went off. >> the race to find amber. >> i'm absolutely 100% hopeful she's alive. >> were detectives getting closer? and was this suspect number one? aflac. ♪ aflac, aflac, aflac! ♪ [ both sigh ] ♪ ugh! ♪ you told me he was good, dude. yeah he stinks at golf. but he was great at getting my claim paid fast.

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the arrest of john gardner for the murder of chelsea king prompted some serious rethinking a few miles up the road in escondido. amber dubois' parents, for example, remembered something about that man. he was a registered sex offender in escondido at the time amber vanished. this was one of the people on your crazy list of going around at night and -- >> yeah, it was. i think there were 148 at that time. but, yeah, it was one of them. >> john gardner, it turned out, had been living here in this apartment complex in escondido at the time amber disappeared. >> some of my volunteers did wait outside of his apartment looking for him to see what he drove or whatever, but they never made contact with him. >> after his arrest, carrie couldn't see how gardner could be connected to her daughter's disappearance. >> gardner seems to attack girls that are by themselves, and amber was last seen by two eyewitnesses in front of the school.

for him to do that in front of all those kids just seemed really unlikely. >> police had also been aware of john gardner, but finding evidence now that he was somehow involved in amber's disappearance was not going to be easy. yes, gardner was a known sex offender who, in fact, lived two miles from the school. police here in escondido had regular contact with him, as they do with all sex registrants, but there was no reason then, said captain bob benton, to suspect him. >> in every one of those contacts, mr. gardner was in compliance with his sex registrant requirements. and he wasn't in the area of where she went missing. he wasn't in the area where the sightings were, and he was not considered to be high risk. >> not officially at least, though there was, as everybody would discover, much more to learn about that. gardner did have a brush with the law in the spring of 2009 after amber disappeared. a woman in a parking lot flagged

down a police officer to complain gardner had been following her in his car, but when a cop confronted him? >> he had asked him why he was following this female. and he had responded that this woman had cut him off in traffic. >> as the cop talked to gardner, something else caught his eye. this known sex offender had a 3-year-old in the car with him. >> that was of obvious concern to the stopping officer. why is this sex registrant with a 3-year-old child? >> it turned out it was his girlfriend's child. she verified the story. and besides, he was off parole, had no restrictions at all about being around small children. but now, after his arrest for the murder of chelsea king, the amber task force went back and to the day she was missing. two witnesses had seen amber in front of the school. one of them said she was with a boy. >> must be somebody that knew her or she knew that she felt

comfortable with, and again we were looking for a boy. >> a year later, detectives began thinking back to that particular witness description. >> one of the witnesses had last seen amber walking with a tall, doughy, dark-skinned boy, which somewhat described john gardner. and we were thinking, well, it's possible that based on it being a drizzly day, lighting is limited, a parent who is just driving up and looking at a boy maybe appears to be younger than he actually was. >> so now police re-interviewed the witnesses and the residents of gardner's apartment complex and his girlfriend. all dead ends. then a tip came in, which sent the divers to a park in escondido. two children told their mother they might have seen a body in a bag around a pond. >> when i was watching all the divers, and they were going through all the muck, and i'm like getting nervous, of course,

when they're doing this. >> search and rescue teams drained the pond, searched through reeds and brush surrounding it and nothing, yet another dead-end. >> and i'm like, whew, it was such a relief, knowing there's no way she could be in there because they were all down to the bottom. >> so a little spark of hope rose to the surface again. >> oh, i'm absolutely 100% hopeful she's alive. >> still, had john gardner ever run into amber? was he involved even if no one could prove it? >> if we ever start to believe that gardner's connected to amber, it's basically us losing hope, you know, and we're never going to do that. we're going to deny it until we have an answer and we have our daughter home. >> but out here among the searchers at this sad little pond, mo dubois could have no idea that farther south in san diego sergeant brown had already embarked on a very unusual errand.

>> you could say it was a unique day. >> but just where he was going, he had no idea. >> he just guided us up the street, you know. he explained where we would probably turn off on a dirt road, and we did just that. >> a journey down a dirt road? where could it possibly lead? >> this could be an escape attempt. >> come on. this guy is in jail for murder, and now he wants to go on a field trip. this might not go well. improving your health isn't always easy, but you can do it. stay active... get outdoors... eat healthy... and choose colgate total®. it does more than protect, it actually helps improve mouth health. [ male announcer ] it fights germs for 12 hours, in 24 hours starts to fortify enamel, and in 4 weeks helps improve gum health. you can do it with colgate total®.

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it happened even as search and rescue teams were wading through that escondido pond following what might be a lead in amber dubois' disappearance. 20 miles south in downtown san diego, d.a. bonnie dumanis received a mysterious request to meet with gardner's attorney. >> wouldn't discuss what it was. >> gardner had been claiming, remember, he had nothing to do with amber's disappearance, but this morning his lawyer offered a deal, and it was huge. gardner would lead detectives to amber, but he would only do it

on one condition, that they couldn't use it against him. >> if we didn't use the fact that he took us there in any -- as evidence in any court proceeding and that his attorney had to be present and we couldn't question him in any way. >> she took the deal, and sergeant brown's phone rang. >> we got told to go down to the jail, and we were going to go on a field trip with gardner. >> and sergeant brown and his men were told the rules. >> this was not his confession, but he was going to show where it was. >> they had 30 minutes to prepare, called the s.w.a.t. team for backup. why? >> this could be an escape attempt. >> come on. >> the guy is in jail for murder. we have his dna and now he wants to go on a field trip with a couple of detectives and he's a big guy. this might not go well. >> and so off they went. gardner showing them the way.

a detective surreptitiously texting directions to the undercover s.w.a.t. cars around them. >> we set them up in a few strategic locations, and as we began driving on the freeway, we knew where we'd pick them up, different cars at different on-ramps. >> this is where they drove, through an indian reservation, up a dirt track to the top of a rocky hill. she's in there somewhere, he told them. this is 20 miles from where she disappeared. did you have any idea where you were going or get a sense of -- >> no. he can't really point his way in waist chains. but this goes off a cliff. to get his bearings, he would -- >> and i would grab him and go, if he goes off this cliff, no one's going to believe me he accidentally went off this cliff. >> he looked around, seemed confused. >> he came up and he went right to here and says, right there, right about here.

and he's not exactly certain. then he takes a few steps this way, changes his mind. >> what were you thinking, as you're looking down at this? >> well, this isn't going to be a fun walk, and also, how did you get there? he tries to go here. he can't make it, he comes back and he resets and then he says, oh, i think it's this way. honestly we were frustrated. we don't know -- we still don't know if he's doing this just to get out of the jail for the day. >> they were still watching for any escape attempt. and then gardner found a familiar area. >> then he gets to about here, then he remembers, and he says, this is it, this is it, and he was i dare say excited. >> detectives walked their shackled prisoner down a steep incline. >> so we were just sliding down this. >> i can see why you would. this is very steep. pushing their way through the thick brush and trees. until they got to an old rusted water tank.

>> this is a tank. i remember holding him right there, and he's pointing here, and he goes right about here. he's also unsure of himself. i think right there. i think right there. >> then he saw something, a reminder. >> he leaned into me and he said, see the shovel mark? there was a distinctive mark that held in the dirt like a nice clean slice in the mountain. i know it's going to be there because i had a shovel. so that was enough, i pulled him out of here. >> what were you thinking? >> i work in the homicide division. i'm just used to it, let's just say. but this was just absolutely surreal that he would bring me here, and i know this case. i know this girl. i live in this community. this is in my newspaper and i see her face or poster in every business and store i go into, so, and, you know, here i am, and he's walking me to the grave. >> here was the spot where he

claimed to have buried amber dubois over a year ago in a thicket of trees on a hillside in the middle of nowhere. no houses anywhere. accessible by one dirt road. >> i don't believe anybody would have ever found this site. >> up on the hill captain benton made the next decision. >> we didn't want to notify the family not knowing whether it truly was amber or not. >> but the next day, saturday, the medical examiner had made a positive identification. gardner had, indeed, led them to amber's remains. more calls to make. >> when we received the call on saturday night, we immediately get a sinking feeling in our stomach because we've been called in many times to have talks, never at a -- >> on a saturday. >> on a saturday night at 8:00 p.m. at night >> would they come to the escondido police station? >> walking in there, seeing the medical examiners, all of our investigators were there, the minister, the sheriff's department, d.a.'s office, you

know what you're going to hear next. >> the medical examiner told us that her remains were found today, positively i.d.'d her through dental records. >> i can't say that i was prepared to hear it but after 386 days of searching, we're ready for anything they can tell us. give us an answer. make this stop. >> what did you do after that meeting, the two of you? >> cried for days. >> the escondido police chief made the announcement the next day, sunday, march 7th, 2010. two teenagers found dead in less than a week. >> human skeletal remains have been positively identified as being those of our missing 14-year-old amber. >> but what he didn't say to amber's parents or to anyone was, call it the official secret, the fact that gardner had led them to the body. why not tell? because now investigators needed

to prove gardner's guilt without using a shred of what he had shown or told them. >> escondido police and sheriff's homicide detectives were following a lead in a case when they made this discovery. >> but, frankly, they were stuck. independent evidence? so far, none. meaning gardner might never be charged with killing amber unless -- unless someone offered an incredible gesture. one heartbroken family reaches out to another, paving the way for a stunning moment in court. >> do you admit that? >> yes. [ door knock! ] did you say bounty paper towels are the best?...

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there were memorials then. >> i wake up every morning now, and i have to remember how to breathe. >> the searches were over.

they tried to figure out how to go on. >> i will channel my rage and commit to spending my life making our society safe from the incurable evil. >> there were thousands of these events, a measure of the upset, the impact of the killings. >> for every single person out there who's ever shed a tear for amber, for chelsea, i beg you to please put one minute of effort, one minute of action into helping protect our children. >> and while that was going on, investigators searched furiously for any evidence that would independently link john gardner to the death of amber dubois. >> what that included was finding every vehicle that he had at the time that or access to at the time that amber disappeared, and i believe there were four different vehicles. we had to find where every one of those vehicles were, have

them forensically examined. >> the investigation continues, and the days ticked from march into april when we sat with amber's parents. remember, they had not been told that gardner led police to amber's remains or even that gardner was known to be the man who abducted and killed her. we asked them if they were prepared never to know for certain who killed amber or how police found her. it may be that nobody's ever charged. it may be that you just have to live the rest of your lives not knowing. >> i'm more fearful that there might be another predator out there as opposed to more upset as not having the answer. i want to make sure that whoever did this to amber is off the street. that's what scares me the most, you know? what if they never connect this to somebody and the person who actually did this is still out there and can do it again? >> but it was a different question carrie had on her mind. what happened to amber? she wanted to know, had to know

everything. you want to hear whoever did this tell you exactly what happened? >> uh-huh. >> you do? >> oh, yeah, absolutely. >> i couldn't hear it from the person's mouth saying i did this, i did that. >> i could. >> i couldn't. i couldn't do it without wanting to reach over and cause myself to be in jail for a long time. >> but here on this april afternoon, the question was academic. more likely they would never know. strange the difference a week can make. it was april 15th, five days after our interview. amber's parents were called to a meeting where they learned for the first time who led authorities to their daughter's remains. >> we knew it was significant because we had to go downtown to go meet with the district attorney. >> and they were informed of an offer made by john gardner's attorney. >> his attorney came forward

with an offer to plead guilty to all of the charges for life without possibility of parole and waiving his appellate rights. >> in exchange, gardner's attorney wanted the death penalty off the table. so her dilemma, should she continue to develop her strong death penalty case in the murder of chelsea king? should she wait for the task force to link gardner to amber's death too, or would that ever happen? >> there was absolutely no link that anyone was able to find between john gardner and amber. >> and so d.a. dumanis was faced with a choice, proceed only in the chelsea king case or make another deal to get some kind of justice for amber. you could have won pretty easily a death penalty case in the chelsea king case. why not just do that, get the death penalty for that one? >> the question was for the family. so the family i talked to was

chelsea's family because we had no case on amber, and we talked about the fact that the end result with a life without possibility of parole is he'd die in prison and there would be no appeals. >> so the kings were faced with a decision. would amber's parents ever learn what, in fact, happened to their daughter? would they see her killer pay for this crime? april 16th, the day after mo and carrie learned about the plea deal. >> this is a special news report. >> san diego television stations interrupted their afternoon programs. >> a hearing is scheduled in the courthouse for john gardner. >> there was news, a lot of it, all at once. >> let us take you live. there's john gardner right there. >> the truth of that allegation? >> yes. >> a stunning admission of guilt, first for chelsea king. >> you're admitting that on february the 25th, 2010, you attacked chelsea king while she

was running, you dragged her to a remote area where you raped and strangled her. you then buried her in a shallow grave. do you admit that? >> yes. >> do you also admit that the killing was done with premeditation and deliberation? >> yes. >> and the murder took place within an hour of your initial contact with chelsea king? you admit those facts, as well? >> yes. >> then the jogger in december. >> do you admit that on december the 27th, 2009, you attacked candace mankayo while she was running and unlawfully assaulted her with the intent to rape her? >> yes. >> and after 14 months, an end to the mystery of what happened to amber dubois. >> you admit that on february the 13th, 2009, you took amber dubois to a remote area of pala where you raped and stabbed her, you then buried her in a shallow grave, do you admit the truth of those facts? >> yes.

>> you're also admitting that this murder took place within an hour and a half of your initial contact with amber dubois. do you admit all those facts as well? >> yes. >> in exchange for a life sentence, gardner admitted all and pleaded guilty. it was a deal made possible because of a choice willingly made by one grieving family in an effort to spare more pain for another. >> the dubois family has been through unthinkable hell the past 14 months. we couldn't imagine the confession to amber's murder never seeing the light of day, leaving an eternal question mark. >> and amber's parents were grateful. >> going the rest of my life without knowing would have been horrible. we would have been always wondering if he was connected or if there was someone else out there. >> but now that she knew? now she was determined to come face-to-face with her daughter's killer no matter what it took.

>> i want to talk to your son and find out why he murdered my daughter. >> an emotional meeting behind prison doors. what did you ask him? hello, gentlemen. andrew, could you send me the revised deck please... the revised deck... i can do that. your samsung can do that? mine can't do two things at once. hmm. huh. uh, could you move your laptop a little bit? it's actually a tablet... a surface... well it does have a keyboard. and a battery dock. and a mouse. this book makes no sense. (all) i know. i was thinking the same thing. well, maybe we can look it up on youtube. hmm, it can do that? yeah. my kindle can't get that app. well, what can it do? books. (woman) so your samsung looks better than my ipad because it's got more pixels? right

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what is your plea? >> guilty. >> it was after john gardner stood in this san diego courtroom and pleaded guilty to the murders of chelsea king and amber dubois. >> probation hearing is set -- >> it was as he waited for the formal sentencing, life in prison, that he knew was coming. from the san diego county jail cell, gardner gave an interview to a local tv station and said he would only talk to the families about what happened to chelsea and amber. >> as soon as i heard those words, it was all i focused on. >> because carrie, remember, was

determined to know what happened to her daughter during the last minutes she was alive. >> i think if you're a parent you want to know what happened, you want to know how they took your child. if a lesson can be learned from amber, then i want it out there. >> so early in may she began trying to arrange a visit. >> i went through all the correct legal channels to try to get it and they kept insisting that i would meet with him after sentencing, and i didn't want to meet with him after sentencing. >> she had to know now. she tried to schedule a visit, was told none was available. so carrie had a bold idea. why not ask gardner's mother to give up one of her visits with her son? and so one afternoon she waited outside the jail as gardner's mother approached. it didn't go well. >> look, i just want to visit your son. >> excuse me. >> don't touch me, i'll hit you. >> don't touch me. >> i'm not. get away from her.

>> i'm not here to bother you. i want to talk to your son and find out why he murdered my daughter. >> the next day there was a phone call from the jailer. >> can you be here in a half hour? >> somehow the time was found for her talk with gardner. what was it like to walk in there and know you were going to talk to the guy who killed your daughter? >> i was real nervous up until i got there. going in there and talking with him just didn't really have any feelings with me. i had forgiven whoever had done this to amber when i got her remains back. so to me it was just a person talking. >> he was already sitting behind the partition when she arrived. >> i think maybe i glanced at him once. >> where were you looking? >> just down. just not at him. i really had no desire to look at him. >> why not? >> i didn't want to get angry or

upset. i just wanted to stay focused and so for me to stay focused, i just looked down or doodled on paper or whatever. i really wanted to stay in the mind-set where i didn't start crying for get upset. >> so what did you ask him? >> walk me through your day. >> and now carrie would finally learn what happened to amber in the last hours of her life. >> he started, you know, in the morning. him and his girlfriend got in a fight. >> so he took off in a car to blow off steam, he said. >> and he happened to drive by the street where amber was taken. why she was on that street, i don't know. >> it was not the way amber usually went to school. >> my guess is that she was probably going by her girlfriend's house that lives right around the corner. >> he snatched her here, gardner told carrie. >> he saw amber walking by herself. he turned and cut her off and told her, if you don't get in this car, i have a knife and

gun, and it will be real bad for you. she got in the car. he didn't have a gun. but i don't know if he showed her the knife or not. i'm not sure. but he said she knew by the look in my eyes that i was serious. there was no questions about it. and honestly i think if she would have tried to run, he might have just killed her right there on the spot. >> did you ask him for more than that? >> yeah. he told me which way he drove. he was very detailed about the streets he went on. >> he stopped the conversation repeatedly, said carrie. >> asked me if he could -- if i wanted him to continue. you know, he got real upset every time i told him to continue and he was like, i don't want to upset you. and i'm like, you've already taken my daughter. continue. when it got to, you know, the rape part of it, he -- he, you know, pretty much begged, please can i stop? can i stop,

and i'm like, continue. he's like, i don't want to, and by the time i left there, he was pretty much curled over, sweating, just, you know, complete crying. he was a mess. >> so he did have some feeling. >> or he's a very good actor. >> so once you got the answers you knew you could get from him, did you say anything else? >> no. he asked me are you going to tell me you hate me? or are you going to yell or scream? i'm ready to hear that. i said, nope. i hung up the phone and walked out. >> did you walk out a different person than when you went in? >> i walked out of that place very happy, very just kind of giddy. and i'm like, oh, my god, i can breathe. it's such a relief. it really was -- it was a great feeling. >> an unexpected reaction? perhaps. though how could anyone know how it feels to be carrie mcgonigle

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john gardner was guilty, no doubt about it. he was a predator and a murderer. all that was left to do was sentence him.

so case closed? not really. for three months, a steady drip of news seemed to ask over and over, how did they miss him? gardner, remember, spent five years in prison for sexually molesting and beating a 13-year-old girl back in 2000. he was paroled in 2005. >> it was maddening to us at the time. everything that led up to his being free on the street, allowing him to stalk our children. >> maddening because there had been fair warning. a psychiatrist a decade earlier warned that he was very dangerous and should receive the maximum ten-year sentence under his plea deal. had that advice been taken, gardner might still have been in prison back in 2010. >> there's numerous, numerous times that he fell through the cracks. >> like, for example, his parole violations once released. the cops found marijuana in his car. for a time he lived too close to

children. but the judgment of the parole department was not to bust him, and then the public discovered that gardner wore a gps monitor his last year on parole, which ended in 2008, just four months before amber disappeared. but no one was watching and -- >> we found over 100 violations of parole that hadn't been previously discovered by the department. we missed some opportunities to, you know, remove him from society. >> dave shaw was the inspector general for the california department of corrections, the agency's watchdog, which after the fact looked into the gardner case. >> he spent time, you know, adjacent to daycare centers, to schools, to parks, to playgrounds, to the beach, all places that he shouldn't have been at, and we didn't catch it because we weren't looking. >> nor was anyone watching when gardner drove into the parking lot of a state prison.

gardner said it was to drop off a friend, but it's against the law for an ex-con to enter prison grounds. and that, san diego's d.a. told us, was a felony that would have locked him up for a very long time. >> we would have filed a three strikes case because his 2000 case was two strikes and he'd be facing 25 years to life. >> are you saying then that the deaths of these two girls could have been prevented? >> we're saying is had he been incarcerated, it would have been impossible, and there were ample opportunities to either revoke his parole or to prosecute him. >> but no one at the time was monitoring gardner's gps. >> did you find fault with somebody or with some system? >> we think it was the system that was at fault. we didn't find any particular fault on the part of the parole agent. the agents just weren't looking at it because they weren't required to. >> listen to this, they weren't expected to track gardner's gps

monitor because of the way a of at the time classified gardner's risk potential as medium-low risk. >> with the lower risk offenders, it was only used as a crime-solving tool. >> matthew cade was the head of the california department of corrections. >> so if a crime is reported, then we go back to the tracks and see if we can place them at the scene of the crime. >> gardner a lower-risk offender? again he says it was the assessment method itself, its limitations, that failed to spot gardner's potential to be dangerous. but when gardner was paroled -- >> this was the most accurate tool in the world, and so we used it. i wish we'd known then what we know now, but the department just didn't have anything else to use at the time. >> it was based on factors sump as age, number of offenses, type of crime. >> i think the public wants us to be able to predict who

exactly is going to do what. we'll never be able to do that. low risk doesn't mean no risk. >> improvements have been made. there's required gps tracking of all sex offender parolees and treatment for those parolees. the treatment includes the use of polygraph tests in an effort to keep track of parolees to see if they're in danger of re-offending. what do you say to a headline that says these two girls would be alive today if the system had done its job? >> i don't agree that any one thing necessarily would have made the difference. it's hard to know. we can learn from this. it's worth ten headlines if we get a little better and there isn't a next victim. >> we'll move then to the victim impact statements. >> there's an emotional structure now to sentencing days in american courtrooms. wrenching, often deeply angry. >> and i pray every night that god shows you no mercy. >> and this is how it was with john gardner, listening, sometimes attentively, sometimes

not, to chelsea's parents. >> you dismantled a family life that was built on love, trust and faith, but you did not destroy it. look at me. why am i not surprised? >> and to amber's. >> no one can appreciate the horror that is my life until they can appreciate the joy that was my amber. >> and then watch what happened when that earlier survivor of a gardner attack -- >> every day i lace up my shoes and relive the moments of terror, the other conviction that i was going to die. >> watch what happens when she reminds him how she elbowed his nose to escape. >> and, finally, to ask him how his nose is. >> was it rage he was expressing as he turned to his attorney and

appeared to say she didn't hit me. and even adds, she's saying it for publicity. >> i saw that look of rage and i said, wow, you just showed the whole world what amber and chelsea saw before you killed them. >> but all this was formality, the people who have to deal with the deaths he left in his wake, had struggled with what to do after. amber's mother is involved in search and rescue. >> building her legacy is going to be the search and scue team. >> and chelsea's parents took on the system. if if our laws were smarter and bolder, chelsea might still be here. >> they pushed for a new law named for chelsea and sign ee e the governor in 2010 imposing stiffer sentences for sex offenders and improved monitoring and assessment of parolees. >> governor schwarzenegger, i

thank you for your support and commitment. you've helped us fulfill our dream of doing everything in our power to prevent this tragedy from ever happening to another family again. >> chelsea should be graduating college now and amber a college future farmer. instead, all their parents could do was watch authorities lead the killer away to a life in prison. and try e best they can to help stop the next one out there somewhere. . (helicopter blades whirring) god help me. woman: mr. roth! mr. roth!