him. he's still viewed as some sort of boogeyman from the past, and he most certainly escaped justice. >> every year on the anniversary of each confirmed killing, a small group of zodiac hunters revisits the crime scenes. former law enforcement officials, family members of the victims, and civilians who are drawn to the mystery use these occasions to debate the facts of the case. though dna experts continue their work to uncover his real identity, the zodiac is one of the last major serial killer cases to remain unsolved. the zodiac, a man who wanted to be famous, has remained both in the public eye and

>> i had many what i call them projects they were different people in the town that i followed watched. cut the phone lines broke in and waited for her to come home. >> welcome to very scary people. i'm donnie wahlberg. the serial killer known as btk began terrorizing the city of wichita, kansas, in 1974,

stalking and savagely killing his victims in their homes, then taunting police and reporters with disturbing letters detailing the carnage. demented. elusive. btk was actually hiding in plain sight, but his true identity and motive would remain a mystery for decades. it all began on an ordinary day with the otero family. this is part one of btk bind, torture, kill. >> i came through the back door, cut the phone lines, waited at the back door, had

reservations about even going in or just walking away. but pretty soon the door opened and i was in. >> the otero family was a family of seven headed by father joseph and his wife julie. they had both been born in puerto rico, but they moved to new york as children and there they met in high school. >> my family was your typical military family. my father was an air force sergeant, and my mom was a stay at home mother. good catholic woman. >> they had five children ranging in age from 15 all the way down to nine. >> we were all into school. my father expected us to get good grades and we stayed pretty athletic and into sports. >> hard workers, good parents, kids doing well in school. really not a care in the world

we came to wichita, kansas in the 70s because my father had retired overseas and was looking for work. >> he worked on jet engines and that was the reason the otero family moved here in 1973 was the number of airplane factories we have in wichita. >> my dad found a job at cooke airfield. it was a small family owned airfield on the outskirts of wichita, and he was hired as a mechanic. >> wichita, kansas was in the middle of america, and nobody locked their doors. was a great little town to be from. >> january 15th, 1974 started out different. i asked my dad to take me to school early that day so that i could get an extra study hall in my brothers and sisters, danny and carmen. they went with me. >> joe drops those three older

kids at school and he returns back home and joins his wife, julie, and getting the two younger kids ready for school. they're doing typical stuff making school lunches, gathering backpacks, getting ready for julie to drop those kids off when the unthinkable happens. >> he goes into the house, he draws his gun. one of the first things he does is cut the telephone cord, and then he tells them that he just wants their car and some money, and if he can tie them up and he can get the money in the car, he'll leave them alone. >> the killer bound mr. otero to neutralize him pretty quickly. >> he tied up the parents, and then he tied up the kids. and then when they were all in his control, he started to strangle the father. and he strangled the mother. they were both in bedrooms. and then he strangled the boy. and then he took the

young girl down into the basement i walked home by myself that day, and it was a very long, cold, windy walk. >> as is typical of wichita winters. i went into the back door through the kitchen and i opened up the door, walked in the house, and i saw my mother's purse. it was thrown over all the belongings were strewn about, which was totally out of character for my mother. and i yelled out, is anybody home at that point, one of my siblings yelled out, charlie, come quick! mom and dad are playing a bad trick on us. i saw my brother and my sister daniel and carmen with my parents bodies and my heart. it just felt like somebody had

ripped my chest wide open and pulled my heart out. we tried to use the phone. it didn't work. so i took carmen and danny outside and we stayed out in the front yard. danny went next door to use the phone and called the police. when the first police officer pulled up, he came out to us and asked what was going on. i said, go inside the house. you'll see. he went inside the house. he came back out, looked at me and said, could your father have done this? >> you only come across an artist like luther vandross. once in a lifetime. >> he was a boss from the beginning. luther said, i have a sound in my head. i got to get it out you are my shining star. >> it was the most exciting time in the world. >> his life had extremely

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couldn't find pilates anywhere, so i started my own studio and with the right help, i can make this place i love even better. >> earn up to 5% cash back on business essentials with the chase ink business cash card from chase for business. >> i remember me asking over and over again for joey and josie because they were due home from school any minute and i just didn't want them to come home to that scenario with the police there and everything. and i wanted them with me the crime scene investigators, they came to the scene, collected the ropes that the family was tied with, took pictures, documented the scene, diagramed it, and during the initial crime scene work, they

worked this as if maybe it was a home invasion of some kind. >> they sent me out and i arrived and police cars everywhere. and then we start to find that there were multiple bodies inside the house i kept asking for joey and josie over and over again, and at one point, finally, the chaplain came up to me and sat me down. >> and the chaplain looked at me and said, um joey and josie were in the house also, and that they were deceased. i pretty much went blank after that it wasn't until very late in the evening that we even found out that children were involved, and that's what changed everything this attacker took out the parents and the little brother all by suffocation and

strangulation, which is a very slow, hands on style of killing. >> it's very personal. and because it's slow, unlike shooting or stabbing, you have the option at any moment of releasing your hands and saving the person's life. the terror on the face becomes enmeshed with sexual arousal, so the process of dying is what turns him on, not a sexual act itself it was clear that he wanted josephine. >> i think he had killed ten people in that house. if they'd have been between him and josephine, he obviously spent the most time with josephine. josephine was moved to the basement of the house and she was hung. >> that was so sad and so, so horrible and so callous and so cold that he would do what he did to a child he masturbated

at the scene, which becomes significant in terms of forensics, because he's leaving behind dna samples, a lab investigator took samples of that semen, put it in a paper bag, stapled it shut, and turned it in as evidence because there was no scientific testing to do. >> 1974 that went on a shelf in an evidence facility. >> i don't think people knew how to spell dna, much less from a law enforcement point of view, much less knew what the value is to preserve that. but there's one thing policemen did know, and the investigator was. an incredible imagination for you don't know what you don't know, but he knew he had to preserve that he didn't rape the mother. >> he didn't even do sexual acts on the mother postmortem. the idea that his focus was on the 11 year old girl really

indicates to me that he's fundamentally a pedophile. >> with josephine otero, he said when i saw her bound out of the car and up the stairs, i knew i just had to have her. >> josie was a little girl. if that isn't a pedophile, i don't know what is for people getting killed in a home with two young children. >> that was the beginning of his quest to to be on the dark side and to do this kind of thing. >> january 15th, 1974. wichita instantly changed. it wasn't an innocent city anymore. it became a city that was afraid. >> law enforcement tower looking at us, you know. is this a one off? you know what? what is this? they're. >> were wondering if my father's activities overseas

had anything to do with their demise. and what had happened to him. so there was a lot of questions about overseas contacts as the days progressed, our police reporters were all over it, trying to get information. >> i remember the police chief checking on somehow that this could be related to drugs, but it wasn't. so they abandoned that lead. >> they put 75 officers on the case. they contacted other police departments. they interrogated 800 people. in the first few weeks of it. they set up roadblocks and were stopping all kinds of people. and they came up empty on everything the perpetrator begins to come down from the high of the otero family, and he needs the thrill to come back. >> he focuses on a particular young woman, 21 year old catherine bright.

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and shipping is always great. >> go to deal dash dot com right now and see how much you can save new year's eve live with anderson and andy. >> live coverage starts at eight on cnn. >> four members of the otero family are murdered in january of 1974, and investigators are trying to piece together the evidence and find the killer. when in april, another brutal killing. >> i had many what i call them projects. they were different people in the town that i followed watched. kathleen bright was one of the next targets.

>> for katherine. lived in a in a house just off of wichita state campus a rental home. >> she lived with her sister, but she had gone to lunch with her brother kevin killer breaks in. >> he's lying in wait, and he's thinking he will be able to subdue her and do whatever he wants and fill his fantasy, which is a lot of what the crimes are about. >> when they came home, they were ambushed. >> he first says he's on the run from california to new york, and he just wants a car and some money. that's an attempt to put your your

victims at ease he orders kevin to tie up his sister then he takes kevin into another room and wants to tie him up, and they get into a terrible struggle and kevin gets a hold of the gun. >> he shoves it into his stomach. he fires it and it doesn't go off. >> kevin believed that he had gotten ahold of the guy's gun, but unknown to him, he had a second weapon. through a series of struggles, he will shoot kevin. >> kevin still gets up and fights. the attacker has to shoot him twice. he thinks he's immobilized him, goes to take care of katherine. according to plan. kevin, who is very incapacitated but still somehow aware, realizes his only hope is to get out of the house and flee and seek help kevin went out the door and probably let this guy know that this thing is totally spun out of control.

>> katherine puts up also an incredible struggle to try to save her life. >> the attacker, still with katherine, fighting and fighting, has to resort to using a knife to stab her repeatedly trying to control and. incapacitate her. >> he stabs her seven times in one place, i believe four in another, and then he flees. >> he walks out and walks up the street. why would he do that? because it doesn't bring any attention to him. >> katherine. she's able to crawl out of her room, crawl into another room, bleeding profusely, get to the phone. she calls the operator and the police come and they get her. >> an ambulance is dispatched to the address to gather up katherine and take her to the hospital, but sadly, within hours, she dies at the hospital. while kevin is trying to give a statement to the police describing the perpetrator there was a picture that was drawn of the person

mustache and a beanie kind of winter hat. >> when katherine bright was murdered, no one had a clue that it was related to the oteros in any way. >> the bright case that appeared to be more of a aggravated robbery, a home invasion robbery where it was chaos, there was gunshots fired, there was stabbing. it really did not compare crime scene wise to the oteros so other than the common denominator of a home invasion in the middle of the day, the police had no real reason to link this to the same person. >> btk studied a lot about police techniques. he knew that the police basically were looking for a common m.o., a method of operation. he would wear disguises. so if witnesses saw him, he would look different. he would speak with an accent if he talked to

anybody. so there would be misinformation out there because he didn't want to get caught later in 1974, towards the fall, two brothers and a friend of theirs claimed knowledge of the otero homicides eagle reporters found out about it and wrote a story about it. >> and then one day, wichita eagle reporter took a phone call at his desk. the caller advised him that there was a letter at the wichita public library and named a library book that the letter would be in, told the reporter, if you go get that letter and read it, i think you'll enjoy it. >> and in that letter was a description of the scene at the otero house that only the killer would know about. the public didn't know about them, but the police knew about it, and they knew, oh, this guy's real. this is the guy who did it.

>> this letter was sent by the killer to make it clear. you don't have the right people. this killer didn't want anybody taking credit. >> he is beginning to toy with the police, basically mocking them. that's all part of his craving. need for power at all times. >> he had some very detailed words about what he wanted people to know about him. >> he said, when this monster entered my brain, i will never know. but it is here to stay. maybe you can stop him, i can't. he has already chosen his next victim when you read, there's a monster inside of me that's really not true. >> at least in my experience. what you see is you have somebody who has psychopathic traits. they're total lack of empathy for victims. why? how do we know he has lack of empathy for his victims? because he kills them. people

like that, they call them psychopaths in that same letter btk gave himself a name. >> you know me, by the way i bind them, i'll touch them and i'll kill them the btk nomenclature bind, torture, kill. >> and that's how he wanted to be known. >> he is telling you what to call him, which is simply a demonstration of his need for power and control. >> once the wichita police department realized that they're communicating with the killer, they they make the decision not to publicize it because they think maybe that will keep him from killing again. they all turn out to be wrong. >> yet another potential target, that one wasn't home. he was feeling very frustrated. and then up the street comes this little kid carrying a grocery bag

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wondered if he had moved on to torment another city until march 1977. >> almost three years after he committed the katherine o'brien murder. he has gone out again for a kill. again, the m.o. is slightly different here. >> he targeted a house where there was two females, and he wanted to see if he could kill two females at the same time. he went there. they weren't home. he had another potential target. that one wasn't home. he was feeling very frustrated so i just started going through the neighborhood. >> i've been through the back alleys, knew some certain people, lived while i was walking. i met a young boy.

>> it's march 17th, 1977, and shirley vian, a 26 year old mom with three young children, is sick in bed with the flu because she's so sick. all of the children have stayed at home that day she sends her five year old son, steven, down the street to the local grocery store to pick up some soup for her and the kids to eat on his return, he's walking back and he's approached by a man who shows him a picture of a mother and a child and says, do you know where these people live? he says he's a private investigator working a case he now watches this five year old boy named steven walk up to his own home and enter the door, and he decides impulsively, this is going to be his next target. >> he watched him walk into the house. a minute later, he knocks on the door

he has a gun, forces his way in. >> now this is completely spontaneous. i mean, anybody could have been inside that house shirley is extremely confused. >> why is this man in her living room? the children seem confused and upset as well, and she tries to cooperate when he suddenly announces that he has a problem with sexual fantasies that she needs to help him with, that she can't get out of this. things are going to happen. they won't be pleasant, but she can survive if she cooperates she actually helps him shepherd the children into the bathroom and lock the door. thinking, of course, that the children will be protected if they can't see or experience what's about to happen to her he then takes shirley into that

bedroom to assault her. >> in the meantime, the kids are yelling and the phone rings it interrupts the fantasy of btk, the children screaming and crying, the phone ringing. >> the fantasy is not there. >> the kids were really banging on the door, hollering and screaming and then the telephone rang. so i cleaned everything up real quick, like and got out of there, left and went back into my car. >> the children actually managed to break the bathroom window and crawl out, running for help to the neighbors. >> a neighbor comes over and and shirley has found she has a bag over her head. she's got a ligature around her neck. there's attempts to save her, but she's gone there will be a letter that

arrives later on, and it specifically says the kids were very lucky. he had every intention of killing those kids to the phone call and breaking the window basically saved the little kids lives. >> btk has now struck for the third time, and police who would be working these cases would be looking for patterns and similarities. >> once again, there was no real physical evidence. the child who witnessed the intruder come in gave a fairly vanilla description of a white man dressed in a suit. >> the victimology is completely different. the killer's behavior is completely different other than strangulation. in the first and the third, it just doesn't seem that the same person would be responsible for all three attacks. >> however, the binding of the victim on her legs and her arms are what keyed the police department into matching that one to the otero case, the knots were the same. the rope was kind of the same, so that

one was lumped into the btk cases at that point, we knew of m.o., but certainly we hadn't come to appreciate what's called signatures. >> things that things that a killer does just for themselves. certainly some of the binding of some of his victims was just for him. it didn't further, the completion of the crime. >> i believe this guy had to be just as smart as us when it came to ways to catch him. fingerprints and hairs and fibers, because he was being very, very careful not to give us any with this third attack. >> it wasn't well planned these were not his intended victims. >> shirley vian was outside of his normal, careful procedures. >> one of the more baffling aspects is that this is a man who had cased the home of two young women and had his sexual fantasy, and his plan all worked out when it went south. why didn't he just pack his briefcase and go back to work?

it really doesn't make sense that he would impulsively and randomly pick on the home of a five year old child. >> when we finally asked him about that, he said, why did you why did you veer so far from your very strict discipline? and he said, well, i was just all wound up that day. >> that happens where they will plan something, it doesn't work out, but they're on a high and they have to find someone. and so that's where the impulsive aspect comes. it moves from a planned and that fails. and then they're really angry. so the anger gets built up and they just find a situation where they can strike. it was unpredictable. and that really was so disruptive to our community because nobody knew where, when, why or who was going to be next when he made

the phone call from a public payphone, a firefighter came up right after him and was able to have a description of him. >> andy anderson, take a seat. look at this. you're wet, disheveled. there's debris hitting you. why do you have that on your phone? i watch it all the time. hey, listen, we need to be ready for new year's eve. there could be an ice storm. wow. or a hurricane. and obviously, confetti. maybe you are ready. >> new year's eve live with anderson and andy. live coverage starts at eight on cnn and streaming live on max. >> lowe's knows that holiday list can stretch further than your budget. with my lowe's rewards, you get member deals and earn points when you shop so you can get more and give more to join. milo's rewards for free today! lowe's knows how to help you holiday

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a serial killer is preying on wichita, kansas. >> in march of 1977, after a three year hiatus, he returned to claim his sixth victim by december, he's on the hunt again btk had an elaborate system for finding his victims. >> trolling came first, then stalking, then naming a project. he would start with the process of trolling, which might just be riding around neighborhoods looking for women. >> i asked him, i said, so how did you pick your victims? and he said, i would be driving down the street and i would see a woman standing on her porch, or i'd see a woman walking down the street. and i'd point my finger at her and i'd say, she's next so

then he would start the process of stalking. >> stalking would involve an individual, and he would settle in on her. >> and then he would stalk these people for a period of time. he wanted to know all of the information that he could get publicly about them. >> and he would then name his project again a very organized process for him. when he gets to nancy fox, it will be called project fox hunt at first, she was spotted, and then i did a little homework. >> i dropped by once to check the mailbox to see what her name was. i found out where she worked uh, stopped by there once at hillsborough. kind of sized her up. i the more i knew

about a person, the more i felt comfortable with it. so i did that a couple of times and then i just selected tonight nancy fox is a 25 year old single woman. >> she has her own place, lives alone, and really is in control of her life. she has a full time job at an architectural company, a part time job at night. >> before nancy has come home, he breaks in. he goes into her closet. she does come home she's eating a hamburger and he bolts out of the closet. >> when nancy finds this man standing in front of her, she actually tells him to get out of her house.

>> he thought she was spunky because she was like, i'm going to call the police. and he's going to do you no good. the phone's already taken care of. >> she stands up to him. this really just feeds his fantasy, because he is going to make sure she knows who's boss. he tells her that he's suffering from sexual problems and that she needs to help him with that, and that if she cooperates, nothing bad will happen to her. >> and this is the first time really that he is actually in control of the situation and he can actually act out what he had fantasized about doing. >> and she was like, well, let's get this over with so i can go call the police. >> i think at the time, women were taught to submit to sexual assaults rather than try to fight off an attacker, which it's different now. >> so he ties her up. he does very elaborate knots and he

does the btk routine again. he he tortures her through the strangulation process. he brings her up to the point of dying then he whispered in her ear i'm btk. >> don't forget that btk stands for bind, torture, and kill. he has her bound. he's in the process of killing her. but the torture is the whispering in her ear. i'm btk. i killed the otero family. i am now killing you and strangling you this is psychological torture. it would leave her dying in absolute terror. >> he will describe that. she put up a hell of a fight that actually turned him on. even more once she is dead, then he will masturbate at the crime scene. >> he will leave behind semen

and dna. >> when btk killed nancy fox, he left her bound, strangled and deceased on her bed. left the house the next morning, he realized that nobody had found her body. he wanted the police to know that he had struck again. so btk went to a payphone called the operator, because in those days there was no 911. he called the operator and asked to be transferred to the police. >> he will find a homicide and. >> south pershing, nancy fox, the police responded to that address and found her body on the bed. >> it wasn't that he wanted to get caught. he wanted the cat and mouse game to begin. and if he has to call in the murder himself and report it so that the police can be on the hunt for him, that he will do so that he can gain the upper hand, a feeling of superiority you don't even know i've killed somebody, and you're not going to catch me.

>> when he made the phone call from a public payphone, a firefighter came up right after him and was able to have a description of him, and the phone was just dangling there. so he was almost caught at that point when the crime scene investigators found the dna stain on the female clothing on the bed, they collected it, bagged it properly, once again, sealed the bag. >> they knew that it was semen, but there was no dna testing at that time. and so they packaged it properly, sealed it up, and put it with the rest of the evidence of that case. >> this is the second time that he's done this. he did it at the otero crime scene in 74. he's now doing it in 77. he doesn't really know or understand that genetic material can be preserved over decades nancy fox is the first one where he will take a driver's license, a memento which is consistent

with serial killers. >> the souvenir taking a driver's license was really about him reliving the moment i worked with criminal personality research studies on serial killers. >> that's the way it keeps the fantasy alive. and a lot of times that can work. he can look at the driver's license and it reminds him of that, and it can be used as a sexual stimulus for him until that starts to wane, and then he has to go and find another victim btk was interesting because he basically created his own pornography. >> he would draw pictures of women in bondage, tied up looks of fear on their face when he was trying to capture. was that terror, that terror that excited him. >> so i called him at home and said, you need to get in here now. i think we have a letter from a killer

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bonus jackpot party a party in every spin. >> i'm clarissa ward in damascus, and this is cnn. >> you will find home. aside all throughout the south, converging. nancy pelosi. >> it's almost two months since btk called into the local police self-reporting the homicide he committed on nancy fox. and there just doesn't seem to be any attention being paid to this murder. not only that, the police have never linked all three of them together so in january 31st,

1978, btk sends a cryptic little child's rhyme to the local paper, the wichita eagle. >> he creates a poem called shirley locks about the murder of shirley vian, based on a poem called curly locks. >> it ended up in the classified department of the eagle. >> he thinks that this is somehow going to draw attention. >> there's no report about it. there's no story about it. after ten days, he finally sends a new letter to the local tv station. if the newspaper is not going to pay attention to him, maybe the tv station will. >> it was february 10th, 1978, and i get a call from the receptionist and her voice is quivering just a little bit and

she says, i think i have something that may be could be important. so i walked out front and she's holding up this letter just by the edges. it turned out to be a letter from btk. >> there was a poem titled o death to nancy. to the left of the poem was typed btk four times, and beside each he added tiny hangman nooses. there was also a pencil drawing of a woman bound and gagged, and a two page letter with some of the words misspelled. btk wrote i find the newspaper not writing about the poem on an unamusing there's a psycho running loose, strangling mostly women. there's seven in the ground who will be next. >> the writer, who claimed to be btk, admitted to the murders

of the otero family, shirley ann nancy fox. he admitted to and gave details of all of those homicides. >> there was no confusion anymore that all these cases were connected cake realized they had a big story, but they took it to the police department. >> chief onion looked at the letter and he said, basically that it was time to release the letter because we now had a serial killer the onion made the decision at that point to go on television and announce that there was a serial killer in wichita by the name of btk. this morning, ketv was contacted by the person who police say they believe murdered four members of the joseph otero family. >> in january of 1974. >> so that evening, the police chief of wichita appeared on our air. at 6:00. >> we have an individual who apparently has the

uncontrollable desire to kill. at times, he is not a rational person. during that frame of mind, as your letter indicates, he tries to fight off the demons in his head, but is unable to do so. so there's just no question in the police's mind as to the fact that this individual is responsible for seven murders in our city. >> we didn't know we had a serial killer. we knew we had a bad guy, serial killer we didn't know about. that was a terrifying and clarifying moment for the people of wichita. nobody expected a serial killer here. >> people were really concerned about having locks on their doors, about who might be calling them, or them not having a telephone or just walking into the house and finding the the telephone wires had been cut. >> li tie was utterly the boogeyman to all of us. he was the boogeyman made real btk is finally in his glory. >> it's been four years since

the otero murder, and finally he's on the news. this is important because he's launched the investigation, actually giving the police the clues they need to try to catch him. and this is just going to make him feel like he is god. >> there was criticism in the community. why can't you catch this guy? >> what's different about him and what's unusual is the randomness of the victims, which is why he was able to get away with it. >> he's perfecting his craft. he's trying to be very good at what he does for serial killers. >> power and control. they're very often not able to control their compulsions. the cooling off period usually gets shorter and shorter and shorter. the thrill is gone. they have to get out there. they have to kill again. >> these homicidal maniacs, they think they're smarter than the rest of us. and they think that they're going to

pull off the perfect crime and it doesn't exist. >> the arrogance was part of his downfall. >> we're not getting any communication from the police department. something is happening. something is going on this guy, this is the killer. >> so i finally looked at him and said, come on, just tell us who you are. and he said, i'm btk btk had killed seven people, including two children. >> he was taunting law enforcement with clues, but police were no closer to discovering his identity. although he left his dna at two murder scenes, dna testing and tracing did not yet exist, so the killing would go on until a stunning twist that would finally end the terror that's in part two of btk. i'm donnie wahlberg. thanks for watching. good night