do you select the perfect pan? copper pans -- expensive. cast-iron pan -- heavy, hard to heat up. you need lots of fat, oil, butter. if it's not cleaned properly and you see this rust in here, we're gonna have a health issue. aluminum pans are very cheap. the handles get hot quickly. the gauge of the aluminum is very thin, so the pan will warp. not very good. this pan, it takes a long time to heat up, it can't go into the oven, and the coating will peel over time. copper chef's my favorite pan. goes into the oven, conducts heat well. it also has the induction plate. with the square pan, you have more surface so you can fit more product into the pan. the ceramitech coating is new to the market -- very durable, easy to clean, gets up to 850 degrees, and chemical-free. the copper chef gets a five-star rating from me. >> all right, denise, you know what? i love mussels. i make them all the time. so, in order to make good mussels, we have that lid that

holds in the heat. you want to get that pan really hot, get the mussels in. >> ooh, yeah. >> and then get the lid down. that's gonna get the mussels to open, and that's what we want. >> gorgeous. >> look at my beautiful mussels. >> they look pretty good! >> they're absolutely gorgeous. so, you know what we're gonna do? i am going to plate these out. now, look at this. >> oh, my. >> i want to say i have a couple of hundred mussels in here. >> wow. that is a lot of mussels. [ laughs ] it's endless. >> this is what i do when i have company for breakfast. i always make a giant frittata. >> ooh! oh, my gosh. okay. >> it's just a baked-egg dish. but i'm telling you, it is the easiest way to cook for a large bunch of people. and, you know, our pan is designed with these high sides so i can get this out beautifully. but i can make a huge, giant frittata. look at that. >> that's a lot of eggs, yeah. >> and you know what? i could have made it twice as high. it's fantastic. >> because of those deep sides, right? of course, look at my pan. >> clean as a whistle. >> clean as a whistle. i just have to wipe that out, and then you know what? >> [ laughs ] right.

>> i can make another one, depending on how many people i have. >> of course. oh, that looks really pretty, too. >> all right, so, now of course i'm gonna get in there. >> cut it up! >> we're gonna check it out. yum. >> oh, beautiful! oh, look at that! potatoes. >> look at the beautiful size of this frittata. look at that. >> most typical pans don't hold up in an industrial kitchen, 'cause truly, they're not designed to be worked the way we put them to work. the beauty of the copper chef, it's very, very versatile. it's really strong. the riveted handle also provides a level of strength that you do need to have when you're working in an industrial kitchen. i can go right from the stovetop, directly in the oven, out of the oven, onto the dish. they were getting thrown around like regular pans, and so impressed how easy they were to clean afterwards and how much they look like we just purchased them. >> so, now what we're gonna do, a little flambé. what do you think? >> ooh! >> some bananas foster? we're not just gonna make a regular bananas foster. we're gonna add a little chocolate.

>> i like that. >> you know why? 'cause chocolate's sticky and gooey. >> and delicious. >> and delicious. >> hello! >> and what else is sticky, gooey, and delicious? >> ah, marshmallows. you can't get more sticky than that. >> so, we're gonna put a lot of marshmallows in here. the fun is just beginning, because you have to wear these. >> oh, okay. all righty. >> all right. trust me. i'm a professional. >> ah. >> all right. so, now what i'm gonna do is i'm gonna add our rum. >> mmm-mmm-mmm-mmm-mmm. >> we're gonna get a lot of rum in there. what i want to do is i want to make a real dramatic impact. >> okay. >> so, guys, can we lower the lights? >> and i'm gonna step back just a little. >> yeah, you step back. ready? >> let's see. ooh! >> look at that. now, ordinary nonstick, you can't do that. >> no. >> our nonstick goes up to 850 degrees. >> oh. >> look at that. >> aw, it's beautiful. >> i'm gonna turn this off. now we want to get in there, and we want to plate this over. >> that looks good. >> nothing is sticking, all right? of course i'm gonna plate it up over some ice cream. >> oh, my word. >> now, look at that. >> [ gasps ] >> all right, now, i know you only care about the food at this point, but look at my pan. i have flambéed it.

i've put marshmallows in here. i put chocolate in here. >> wow. >> i torched it. >> i know. the pan was literally on fire. >> and now it's clean as a whistle, and i could start cooking again if i wanted to. >> announcer: get your very own all-round copper chef nonstick square pan, and that's not all. we'll include this handy steam rack. create a healthy and flavorful meal by steaming fish and vegetables. it's also an amazing roasting rack. cook a roast to juicy perfection. there's also a versatile fry basket. use it to make french fries, fried chicken, or make golden, crisp fish and chips in minutes! you can even use it as a colander. and it makes the perfect pasta cooker. and we're still not done. we're also including eric's gourmet cookbook. these recipes have been created especially for the copper chef system. they are incredible. and the cookbook is yours free with your order today. look, you could pay over $600 for just one copper pan that's not even nonstick, but you won't pay $500, $300, not even $100. order now during this factory-direct offer and get the copper chef system, including

eric's cookbook, for just four easy payments of $24.99. but hold everything! call or go online right now, and we'll chop off one entire payment. you get the complete copper chef system for three easy payments of $24.99. and just when you thought it couldn't get any better, it does! call or go online, and we'll also include free shipping! that's right. pay no shipping and handling. >> copper chef's nonstick ceramic coating is so durable and resilient, it comes with an incredible lifetime guarantee. if it ever peels, chips, or blisters, we will replace it, no questions asked. >> announcer: call or go online to get your copper chef nonstick pan with tempered-glass lid, the handy steam and roasting rack, the versatile fry basket, and eric's gourmet cookbook, altogether an over $200 value, yours for only three payments of $24.99. plus, get free shipping. remember, this is a special tv-only offer, and it's not available in stores. this incredible offer will end without notice, so you must call or go online right now.

>> denise, my goal is to amaze you today. i made a lasagna. i did it right in this pan, right on the stovetop. >> oh! that's ingenious! >> grab that plate for me, because you got to see this. now, when i take the lasagna out, i know you're gonna want to see this ooey, gooey lasagna. >> look at the layers! >> look at that. it's absolutely gorgeous. >> oh, and the cheese. >> that is lasagna for like 12 people. all right, how about a chicken pot pie? i'm gonna start the chicken on the stovetop. you add these for me. >> okay. you know, this is a great idea for leftovers, isn't it? >> yeah. you know, we always have some leftover chicken, or maybe you just have some raw chicken that you want to cook and brown on the bottom of the pan. >> i'll take that for you. >> thank you. now we're gonna add just some cream soup. >> wow. ooh! listen to it go! >> sounds good, right? >> right. >> all right, so, now, i'm just gonna give it a stir. >> okay. >> even when i'm stirring this hot, creamed chicken, nothing is

sticking to the pan. >> it's not. yeah. looking good. >> now, help me out. >> oh, yeah, yeah! of course. >> we're gonna put in these biscuits. >> some biscuits. >> look at that. >> never thought of doing this. >> [ laughs ] this is how to do it the easy way. >> right. i like it. >> all right. now i'm gonna take it right into the oven. >> nice! >> we're gonna cook this at 375. of course, i have an extra one made for you. >> tv magic! >> oh, look at this. >> that's gorgeous. i'll get the oven for you. >> oh, those biscuits are golden-brown. >> they certainly are. >> look at that. >> [ gasps ] that's pretty! >> all right. now, that handle's hot, 'cause i just took it out of the oven. >> okay. >> oh, man. are you kidding me? >> that looks fantastic. >> all right, let's get another biscuit on here. what do you think? >> oh, absolutely. >> oh, yeah. let's get this one. look at that. >> haven't had pot pie since i was a kid. and, let me tell you, it wasn't homemade. it was the kind that you bought in the freezer department. >> yeah. you don't want to eat that. >> no good. >> look at that. oh, man. >> that's beautiful. >> 'cause i said i wanted to get rid of every appliance in your cabinet and all of your other pots and pans, we had to give you this fry basket. look at that beautiful fried chicken. >> yeah, yeah, yeah, yeah, yeah. my favorite part is the crispy!

>> oh! >> i'm sorry. >> you know what? that's where it all counts right there. >> mm-hmm! >> how about some snacks? >> okay, snacks. >> all right. >> surely, you need oil for popcorn. >> not in my pan. >> no way! >> look at that. all right. so, i have the heat on there. >> yeah. >> all right. now, in order to air-pop our popcorn, we have to put the lid on. so let's let that go, 'cause i have another dish i want to get rid of in your cabinet. >> okay. >> how about your deep-dish pie dish? >> shut the front door. >> [ laughs ] that's right. >> you're making a pie in there? >> i am making a pie in here. >> oh, no way! >> let me show you how easy it is to do. all right. >> okay. >> so, you hold that plate for me. >> gotcha. >> now, i take four pieces of pie dough. and you get this in any supermarket. >> beautiful! >> lay them all down like this. and then... >> no way! >> ...i take this giant can of apples, right? >> whoa! >> or you can just use five regular cans. >> look at the capacity, the size of this thing! >> look at that. i mean, can you imagine? look at that. all right, now, help me out. >> okay. >> all we have to do is fold

these over, just like this, yeah. >> fold it over. okay. >> 1...2...3. >> that's it? [ gasps ] >> you get the fourth one. >> oh, my gosh. >> it doesn't even have to be perfect. >> right. >> can you open that? thank you. >> yeah. you know i can. >> now i'm gonna bake this at 375 degrees. >> okay. >> and, denise, you know me. you know i had to have one ready for you. >> that's what that is. >> that is, yes! >> that's apple pie? >> this apple pie for like 16 people. look at this. are you serious right now? >> unbelievable. >> come on! >> look at that. [ laughs ] >> all right. now, take a look at my caramel sauce in here. >> oh, yeah! yes. >> watch what happens when i pull across. this is like the stickiest substance in the entire world. >> wow. >> look at that. >> yeah. that looks really good. >> that's beautiful, right? okay, so, now, i'm gonna give you a little for your apple pie. >> awesome. you know what i like? in a square pan, you've got a little pour spout built right in. >> hey, you know what? that's something i didn't even think of. >> ah. >> don't eat that yet. [ laughs ] >> okay. still i can't eat it. >> now what we're gonna do is we're gonna pour my peanuts. >> oh, some peanuts? put them in first? >> yeah. remember that snack we used to eat when we were kids?

>> yes! of course. >> that's right. i'm gonna get the caramel sauce all over that. >> oh, yeah, yeah, yeah. can i stir that up for you? >> oh, man. i wish you would. >> okay. >> now, look at how my caramel is sheeting off the pan. look at this. >> oh! >> all right. you know what? i think you earned yourself a piece of apple pie with caramel sauce. what do you think? >> i'm going for a spoon, 'cause i want to really get some caramel on there. >> yeah, you get in there. i'm gonna get in there, too. >> okay. bon appétit. >> oh, man! i can tell you, copper chef will be your go-to pan in the kitchen time after time. toss out your old-fashioned pans. step up to the next generation of nonstick. order your copper chef ceramic pan right now. >> announcer: are your kitchen drawers starting to look like a bad garage sale -- steamers, rice cookers, roasters, slow cookers? and just how many pots and pans does one kitchen really need? and every time you cook, cleanup's a disaster. scraping, scrubbing -- what a chore. what if you could replace all this with one single, nonstick pan? and what if this pan was innovative in design and made of

the highest-quality craftsmanship? and what if you could cook with it on the stove and in the oven? introducing copper chef, the nonstick, all-round square pan with ceramitech. it's a breakthrough in technology. copper chef with extra-deep sides replaces a roasting pan, a rice cooker, a steamer, a stock pot, a wok, and a baking dish. even cook mac and cheese from dry right in its own sauce. delicious! no more boiling and straining ever again. what's the secret? copper chef's innovative stainless-steel induction plate heats the pan quickly and evenly with no hot spots so you can sear meat in a flash. and watch this. copper chef is heatproof up to 850 degrees. incredible! copper chef's unique, square shape means you can cook more food. you can't make this in a round pan. plus, your copper chef pan features ceramitech, a new generation of healthy ceramic nonstick technology. that means nothing will stick to your pan. watch. we burnt milk in the copper chef

and a traditional steel pan. the steel pan was ruined. but watch as the milk peeled right off the ceramitech surface. amazing! look. gooey cheese slides right off. watch this egg slip and slide like it's on ice skates. and because you're cooking with ceramic nonstick, you don't have to add all that extra fat and butter. air-pop popcorn without any oil or butter and no added calories. ceramitech's coating is 100% chemical, ptfe, and pfoa free, so it won't chip, peel, or flake into your food. best of all, cleanup is a breeze, and your copper chef pan is dishwasher-safe. copper chef's stainless-steel induction plate makes it perfect for any surface -- electric, gas, ceramic, and induction. now you can prepare, cook, and serve in one large-capacity, family-size pan. make this scrumptious s'mores cake in 20 minutes. nine egg biscuit sandwiches done at once. incredible! bananas foster flambé in under five minutes. amazing! get your very own all-round copper chef nonstick square pan, and that's not all.

we'll include this handy steam rack. create a healthy and flavorful meal by steaming fish and vegetables. it's also an amazing roasting rack. cook a roast to juicy perfection. there's also a versatile fry basket. use it to make french fries, fried chicken, or make golden, crisp fish and chips in minutes! you can even use it as a colander. and it makes the perfect pasta cooker. and we're still not done. we're also including eric's gourmet cookbook. these recipes have been created especially for the copper chef system. they are incredible. and the cookbook is yours free with your order today. look, you could pay over $600 for just one copper pan that's not even nonstick, but you won't pay $500, $300, not even $100. order now during this factory-direct offer and get the copper chef system, including eric's cookbook, for just four easy payments of $24.99. but hold everything! call or go online right now, and we'll chop off one entire payment. you get the complete copper chef system for three easy payments of $24.99. and just when you thought it couldn't get any better, it

does! call or go online, and we'll also include free shipping! that's right. pay no shipping and handling. >> copper chef's nonstick ceramic coating is so durable and resilient, it comes with an incredible lifetime guarantee. if it ever peels, chips, or blisters, we will replace it, no questions asked. >> announcer: call or go online to get your copper chef nonstick pan with tempered-glass lid, the handy steam and roasting rack, the versatile fry basket, and eric's gourmet cookbook, altogether an over $200 value, yours for only three payments of $24.99. plus, get free shipping. remember, this is a special tv-only offer, and it's not available in stores. this incredible offer will end without notice, so you must call or go online right now. the preceding paid presentation for copper chef was brought to

you by you by tristar products incorporated. i love everything about nicky. she was a phenomenal, amazing person. she loved those girls. pretty much her pride and joy. it's hard for me to even -- it's hard. it's really hard. >> pretty, poised, perfect. her twins were her world. >> they were so precious. the three of them were a very tight unit. they were all she had. she was all they had. >> then came that awful day. >> these two beautiful 16-year-old girls had come home from school and found their mother murdered. >> they were rocking back and forth traumatized, disturbed.

>> what had the girls seen that day? could they provide a clue to help crack this case? >> we were told by the twins that nicky had a second boyfriend. >> two boyfriends? >> two boyfriends. >> jealousy, passion, revenge? >> she was fearful. >> she contacted the police. >> what secrets might the twins reveal? >> it's terrifying. is it possible that this could happen? >> i was shaking. oh, my god. oh, in i god. i couldn't even imagine. >> i'm lester holt, and this is "dateline." tonight watch for the double twist. here's keith morrison with "bad blood." >> reporter: once in a while in a complicated life, a woman can get lucky, which is why you're looking at a sweet little town called conyers, georgia, good schools, the sheen of newness. it was really pure luck that brought nicky whitehead to this

house in this quiet, safe neighborhood, just far enough away from atlanta, that capital of overheated ambition down the highway. here in conyers, she could give her beautiful twin daughters a better life than hers. but, of course, luck, fortune, fate can go either way. sometimes in ways very hard to comprehend. >> everything about this goes against nature. >> how could somebody do that? >> it was definitely the bloodiest crime scene i've ever been to. >> reporter: in the next few minutes, you will know exactly when it happened, where it happened, how it happened, but, of course, the real question is why it happened. and the answer to that, as you will see, it's kind of complicated. but that's how nicky whitehead's life was. >> i loved everything about nicky. >> reporter: dr. harris grew up with nicky. she was a wild child and pretty

and fun, irresistible. >> nicky was -- to me, he was a phenomenal, amazing person. >> reporter: and she was effervescent said nicky's mother, linda. bigger than life. >> she's the kind of person that when she comes in the room, she just take over the space, you know, with her personality, her laughter. >> reporter: but when nicky was 12, ooh, boy, a handful. linda was a single mom with other kids at the time, so she agreed to let young nicky move in with della, nicky's grandmother. the problem was that della let the girl run wild. boys and parties. >> we grew up kind of fast. then later she became pregnant at the age of 18 or 19. so we move kind of fast. >> reporter: yeah. >> yeah. >> reporter: pregnant with identical twins whom she named jazz and as thtaz.

their dad was around briefly then gone. and their mother figure? nicky's grandmother, della. nicky's mother, linda, didn't like that. >> i wanted nicky to get her own place, establish her own life, and my mom would discourage that. she would, you know, find ways to tell her, no, you're better off here. >> reporter: that's how it went for years. but nicky had learned how to style hair and was doing well at it. and eventually saw the possibility of independence. so she eventually wanted to kind of get out from della's control. >> definitely. she did. she wanted to -- as the girls got older, she definitely wanted to take control of her life. >> reporter: then one day in 2000, nicky was shopping at the mall and robert head just happened to be in exactly the right spot. >> i was sitting there one afternoon at about 6:00.

and there walks nicky coming into the mall. >> reporter: your eye caught? >> yes, i can't let her get away. >> reporter: that he was old enough to be her father didn't matter. robert was in love. so he persuaded her to go to dinner that very night. he took her dancing. he bought her nice things, treated her like a lady. >> she was my movie star. that's what i call her, my movie star. >> reporter: his movie star with two sweet daughters. he also soon loved as if they were his own. and that's how nicky came here to safe, secure conyers, this is robert's house. and here they made a family. unusual in some ways, as you will hear, but -- >> it was nice. it was really nice. and everything clicked just right. >> reporter: and she wanted her life to get even better. so while she kept her job as a hairstylist, she enrolled in atlanta's bauder college to study fashion design. >> that's when i actually

learned that nicky was a hairstylist. >> reporter: she thought nicky had a sense of purpose, whether it was about her kids, her fashion or other people's hair. >> i came to class early one day, as i normally do. she looked up at me, what's going on with your hair? and i said, what? excuse me? and she asked me this question. do you have a hairstylist and does she know you have your hair looking like that today? i said yes and no. i'm giving her one more chance. one more chance, and if it's not right, i'm taking over. >> reporter: rhonda loved nicky and nicky loved her girls. she put the twins in dance and music classes, at school, they won awards. >> their teachers describe them as almost angelic, sweet and happy and engaged, and there's pictures the of them, you know, one on each of nicky's arms. >> reporter: katie beck is a reporter at nbc affiliate wxia

in atlanta. >> teachers describe them that way, that they had a sweet demeanor in their classrooms and with their classmates. they were almost timid. >> reporter: then, as they reached their teens, they changed somehow. in the ways children often do and the way nicky herself once did. and just like nicky, the twins were sent to live for a couple of years with the rather permissive family matriarch, della. until, 2010, when nicky welcomed taz and jazz back. all together again in robert's house. a fresh start. and nicky turned up at school beaming. >> she was in a very good mood. she looked great. she had a new look with her hair. and she had braids in and she was happy. >> reporter: as if the braids in her hair were kind of an announcement. her girls were back. >> they were pretty much her pride and joy. >> reporter: you start thinking

about her? >> yeah. it's really hard. >> reporter: it was january 13th, 2010. a sheriff's deputy happened to be in the neighborhood. the girls had just come home from school. the deputy saw a look of horror on their faces, heard their screams as they came pounding on his car. >> one of the twins ran up and literally beat on the side of his car and told him that they had come home from school and found their mother murdered. >> when we come back, exactly what had happened? >> they were going in and out of fits and tears and crying, traumatized. disturbed. >> two distraught daughters are about to reveal a clue. >> we're told by the twins that nicky had a second boyfriend. >> two boyfriends? >> two boyfriends. on this cushion for generations.

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wednesday afternoon, 2010, a gated community in the town of conyers, east of atlanta, twins yasmiyah and tasmiyah arrived home in school, walked in the door, followed the bloody trail and there she was, in the bathtub. their mother, 34-year-old nikki whitehead very, very dead. >> we walked in. >> reporter: the mess that greeted arriving conyers detective chris moon told a

terrible story. >> this was a long, drawn-out fight. nikki was fighting for her life for several minutes. this was not a quick attack and over with. she fought here. she was struck in the back of the head. she had a laceration to the back of her head. there was blood on the door, on the door handle. >> reporter: as if somebody tried to get out. >> tried to get out, yep. then along this wall, you can see a bloody imprint of hairbraids which nikki had her hair in braids where she fell, slid down the wall, the most severe blows came when she was face down in this area. this is clearly where the assailant got on top of her from behind and started stabbing her at the base of her neck. >> reporter: a huge amount of blood here. >> yes, this was the largest pool of blood in this area right here. >> reporter: she was dead or near dead when her assailant dragged her to the bathroom, and that's where she was in a tub of water, what her daughters saw before they ran to the street screaming. >> as we get there, you have

these two beautiful young 16-year-old girls that discover their mother murdered. >> reporter: conyers police captain jackie dunn wanted to get jazz and taz away from the house. that's when he noticed they were hurting themselves. >> one of them was biting her arm. why are you biting your arm? i'm so upset, i do that when i get upset. >> reporter: this was the worst kind of case, detectives needed information fast. but how do you get it from children who just left their dead mother? [ crying ] >> they were going in and out of fits of tears and crying. >> i want grandma. >> asking for their mom. >> i want mama. >> she both seem to be rocking back and forth, you know, contemplative, traumatized, disturbed. >> it will be okay. >> i want grandma.

>> it will be ok. >> i remember thinking, man, i hope there is a civil family member to adopt these girls because they really need somebody to reach out and be good parents for them. >> reporter: word spread through the late afternoon gloom. a friend called yucca harris. >> she asked me when is the last time i talked to nikki. i said saturday. you may want to go over to her house because the helicopters were there and the news reporters. >> reporter: tell me when you heard that, what did you think? >> i don't know. it was like television. i was just like in slow motion. >> reporter: yucca called her mother linda. told her something bad was going on over at nikki's. >> i was so nervous, i didn't know what to do. i was like, oh, my god, oh, in i god. i was just shaking. >> reporter: linda pulled into her daughter's neighborhood and saw a police officer. >> okay. pull over there.

i said, no, i need to go to my daughter's house. he said, ma'am, will you just pull over there, please. and i pulled up to the side. i said, what is going on? i said, the only thing i can tell you is your daughter has expired. >> reporter: there is no getting over news like that. as nikki's family tried to take it in, investigators set to work figuring out who did this. the girls said their mother was still in her room with the door locked when they left the house for school at 7:30. >> we missed the bus, so we had to walk. >> reporter: perhaps the crime scene would yield more clues than the girls could. lieutenant chris moon headed back there. >> they were looking for cell phones, computers, indications typically the victims have

called for spoken with their assailant just before the murder or around the time of the murder. >> reporter: the attack did not look random. it was not rape, but it was so violent. >> that suggested rage, and when you look at a rage murder, it's usually somebody very, very close to the deceased. >> reporter: so naturally, the first person they wanted to talk to was the man of the house, robert head, nikki's boyfriend, but robert wasn't around. >> when is the last time you saw robert? >> yesterday. he left. he came in on sunday. he stayed for a day. he left. >> reporter: here's the thing. robert was a long haul truck driver which explains his absence but not where he was, especially when nikki was murdered. >> we had to find robert, and we had to check on his gps. >> reporter: that takes a while, right? >> yes, sir. >> reporter: meanwhile, detectives spread out through the neighborhood, knocking on

doors. had anyone seen anything unusual? a couple of neighbors said they saw a red car in nikki's driveway that afternoon, a car they had never seen before. and a black car on the street, too. they asked the girls who could have been there? >> does your mom have any other friends or anybody else that come over that you know of. >> she talks to a lot of men. >> she talks to some men. but the only one i've been hearing her talk lately is joe. >> reporter: joe? who was joe? >> we were also told by the twins that nikki had a second boyfriend, joe carter. >> reporter: two boyfriends? >> two boyfriends. >> reporter: now that got the investigators' attention. time to dig a little deeper into the life of nikki whitehead. coming up -- two boyfriends, two possible suspects? >> jealousy or bad blood? >> they were clearly having an argument, yelling screaming over the phone. he was an immediate person of interest.

detectives in conyers, georgia, were getting a crash course in the short life

of nikki whitehead, found stabbed to death in the home she shared with her live-in boyfriend, robert, and her twin teenage daughters, jas and tas, who, at least, had each other for support. >> the girls put their arms around each other and, it's going to be okay. we're going to find out who did this. they were clearly relying on each other to get through this. >> reporter: but they were able to convey some real information. >> any idea who she was talking to? >> it was joe. >> it was joe? >> reporter: their mother had a second boyfriend, a man named joe carter, a local barber whose shop was right next to nikki's salon. love triangle? now the homicide detectives thought was a potential recipe for murder. they talked to robert who was on the road in his long haul truck. how does he react to any of

this? >> he was devastated. >> reporter: easy enough to check on roberts. gps records put him a full day's drive away when nikki was murdered. when they met him, as we did, they could plainly see his grief was real. >> because that was my better half, and she's gone, you know. it's a hard thing. >> reporter: this was how detectives discovered the unusual nature of robert and nikki's relationship. robert told them he knew about the other boyfriend, wasn't a secret. he didn't mind. he said he wanted nikki to be happy when he was away on the road. >> he's a truck driver and when he was home he expected for her her and him to be a couple. and when he was away, he realized that she was going to have other relationships. >> reporter: but what about joe? how did he feel about that? he was upset about something, said the twins. night before the murder, they

said, joe and nikki had a nasty, loud argument on the phone. >> all she told joe was that he couldn't come over there last night. >> reporter: was there some suggestion that there might have been, you know, jealousy or bad blood involved? >> well, and that's what we immediately thought. and so, obviously, he was a immediate person of interest. >> reporter: so he was. and remember, a neighbor spotted a black car near nikki's house the day she was killed. joe's car perhaps? >> you know what joe drives? >> no. i know the black car in that driveway. and it's a black car. >> reporter: rockdale county district attorney richard reed. >> we need to look at joe carter. especially since nikki and joe had been in an argument. they were breaking up. >> reporter: that's a dangerous time in a relationship. >> it can be a dangerous time in a relationship. >> reporter: it wasn't hard to track joe down. he was at the barber shop where he worked. >> it was around closing time. we was ready to pack up and get

out of there, and they approached me and my friends. then they basically said that she passed away. i mean, she's dead. i was shocked. i was just in shock. >> reporter: how did he react when you came to see him? >> he immediately started weeping. >> reporter: he didn't know about the -- or claimed not to know? >> he claimed not to know. >> reporter: but reactions don't always tell the real story. >> they was basically asking about our relationship. when the last time i seen her. i started to realize i was a suspect. >> reporter: detective moon did what any good detective would do. he looked for the sort of marks nikki might have left on her assailant's body. >> looked at his hands, his arms. he took off his shirt. >> reporter: but joe was clean. not a suspicious scratch on him. and detectives learned that black car outside nikki's house didn't belong to him. still, they brought him in for questioning and hooked him up to a polygraph and asked him point blank if he killed nikki. >> and the polygrapher determined that he was not

deceptive in answering questions. >> i wanted them to find the killer, and i wanted them to know that it wasn't me. >> reporter: so that's it for joe? >> it appeared that joe was not involved in the death of nikki whitehead. >> reporter: so two boyfriends and two dead ends. you know, in addition to robert head and joe carter, there could have been a stranger. could have been another -- did you look into that possibility? >> we did. >> reporter: yes. and they still wanted to know who owned another car, a red one, that was also seen in nikki's driveway the day of the killing. it didn't take long to find out. it belonged not to a murderer at all, but a friend. >> nikki had missed a hair appointment with this friend and the friend had come by, knocked on the door and not been able to make contact with nikki and left. >> reporter: imagine had she opened that door. such a grisly scene. so full of rage and passion. so who killed nikki?

someone close? then, as they struggled to figure it out, investigators encountered in their own police file something rather stunning. coming up -- >> i just woke up and my daughter's gone. >> your daughter was abducted? >> i don't know, ma'am. she's just gone. >> family secrets. there were a few yet to be revealed. >> it turned into a fight. >> a physical fight? >> a physical fight. and she contacted police. the worst thing about toilet germs? they don't stay in the toilet. disinfect your bathroom with lysol bathroom trigger... ...lysol power foamer... ...and lysol toilet bowl cleaner. they kill 99.9% of germs including e. coli. to clean and disinfect in and out of the toilet... ...lysol that.

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the investigation into the murder of nikki whitehead was not offering up any usual suspects. the two men in her life, robert head and joe carter, had been eliminated. and a home invasion seemed very unlikely in her gated community. >> there was no histories of any

peeping toms. no histories of assaults in the neighborhood. so we just kept coming up to dead ends. >> reporter: thing is, they felt sure this had to be a rage murder. so violent. so protracted. which made it very likely it was someone nikki knew, even possibly a family member. >> so we started getting into some of the family dynamics. >> reporter: and that's when they turned up, in police files, this remarkable incident back in 2007. one brief snippet of family history, but an event that changed everything that came after it. >> conyers, 911. >> yes, ma'am. i just woke up and my daughter's gone at the house. >> meaning your daughter was abducted? >> i don't know ma'am. i woke up. the door was unlocked. she's just gone. i have twin girls. one of them is gone. >> how old is your daughter? >> oh, lord, 13. >> reporter: you can hear her terror. >> oh lord, my worst nightmare. >> do you think that maybe

somebody came and got her? or do you think -- >> i don't know. i don't know if somebody came and got her, ma'am. she don't do stuff like this. i don't know. >> reporter: but a few hours later, nikki learned that her daughters did do stuff like that. jas had not been kidnapped. she'd snuck out to fool around with a boy. >> up until that day, i believe in nikki's mind she had perfect girls. nikki realized they weren't necessarily the girls that she thought they were. >> reporter: nikki was determined to help her girls avoid the mistakes she made at their age. so she cracked down on curfew, on boys, on cell phone use. the following months would be familiar to many parents of teenagers. screaming, slammed doors, stony silences. and then one summer night in 2008, a year after jazz sneaked out of the house. >> big argument. and it turned into a fight. >> reporter: a physical fight? >> a physical fight. it was tas and jas against their mother. and at that time i think she felt fearful and she contacted

police. >> reporter: was it the right decision to call the police? that ensured the family ended up in juvenile court, nikki asking the judge to help her teach her daughters a lesson. instead, seemed to linda, the judge was blaming nikki. >> i guess the judge thought they were too cute and too smart that, nah, they couldn't be doing, you know -- he did not take it serious. >> reporter: what did he decide to do? >> well, he asked my daughter, he said, would -- do you want your kids to come back home? and she said, no, your honor, not unless they understand that i'm not going to tolerate that kind of behavior. and so he was like you mean to tell me you don't want your kids to come home? >> reporter: what nikki wanted was a court-sanctioned demand that her daughters obey the rules. but that's not what she got.

instead, the juvenile court judge sent the girls to live with della, their great-grandmother. what were they doing while they were at della's house? >> pretty much whatever they want. they kind of ran wild. >> reporter: and got in trouble repeatedly, in school and out. >> shoplifting, smoking marijuana, seeing the wrong type of boys. >> well, she didn't want that. she knew, you know, she was going back to when she was their age in her grandmother's custody. she didn't want that for her kids. >> reporter: seemed to nikki that della was undermining her and had somehow stolen away the daughters who mattered to her more than anything else in her life. >> she really wanted them back. really wanted them back. >> reporter: how did you know this? how did she express it? >> she said it every day. i want my girls. i'm going to fight for my girls. >> reporter: and in january 2010, nikki finally won. the judge ordered the girls back to nikki.

and jas and tas did not like it not one bit. >> so they started screaming and hollering, we don't want to go back. why would you make us go back? >> reporter: in court they were doing this? >> yeah. >> reporter: nikki told her mother not to worry. >> she said, they'll be fine. they'll mellow out. they'll come around. >> reporter: a few days after the court's decision, on a saturday night, nikki put on a welcome home party for the girls. >> they hugged me. you know, they kissed me. >> reporter: and that was the last time yucca saw nikki. four nights later, there they were, jas and tas, answering the increasingly pointed questions of a couple of detectives. >> can you tell me what happened when you got home today? >> reporter: seemed a little odd that the girls were still wearing outdoor gloves. the detective asked, could you take them off, please? >> i need to see your hands and your arms. >> when we did that, we did see a cut on one of their hands, we saw bruising on the knuckles and

the skin marks and bite marks. >> reporter: bite mark. >> and we asked them to explain those. >> reporter: the bite marks could have been self-inflicted. remember the girls were so upset on the way to the station. they were biting themselves. and the other cuts and scratches? the twins told the cops they had been fighting with each other. >> we didn't get along yesterday. >> reporter: it was, as they told their story, detective dunn took a good look at jazz and taz and a disturbing idea settled down somewhere in his brain. >> i haven't made up my mind, but i'm suspicious. coming up -- suspicious? were there reason to be suspicious? >> we watched the high school video surveillance. you see the twins showing up about 2 1/2 hours after they should have for school. >> what were the girls doing the morning of the murder? guess what i just did? built a sandcastle?

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>> they're not behaving consistent with somebody that found their mother murdered. >> reporter: mind you, there's a hurdle a person has to overcome to imagine that these two sweet teenagers might have been involved somehow in what could only be called a slaughter. though nikki's mother, linda, remembered clearly how angry the twins were just a week earlier when the court sent them back to nikki. >> when jas came out, she looked over at my daughter and she said, if i got to go back home with you, i'm gooding to kill you. >> reporter: you heard this? >> i heard this. and it stunned me. >> reporter: but teenagers sometimes do talk that way. doesn't mean they actually do anything about it. so the detectives set about fact-checking the twin's version of events on the day of their mother's death. starting with their claim that they had to walk to school that morning. >> they told us that they had overslept a little bit, that they had missed the bus and had walked to school.

>> reporter: it was a rush, said the girls, but they did get to school on time. >> made all your classes today? >> yes. >> reporter: so the cops did what the cops do. they checked surveillance tape from businesses along the route to school. and what do you know? >> law enforcement had observed the girls walking down the roadway next to the gas station a little after 10:00 a.m. that morning. >> reporter: nowhere near on time, as the school surveillance camera confirmed. >> we watched the high school video surveillance, and you see the twins showing up about 2 1/2 hours after they should have for school. >> reporter: so the twins were caught in a lie. and it was a big one. but it wasn't proof of murder. they flatly denied any involvement in that. even when they were put in separate rooms they presented a united twin front. >> they wouldn't sway. there was never any disloyalty to each other. they never said a negative comment about each other.

>> reporter: getting one to flip on the other was not going to happen? >> no. >> reporter: after those interviews they released the girls. the juvenile court farmed them out to family and friends. and police sent their dna and photos of their injuries like those apparently self-inflicted bite marks off to the lab. and then they waited pretty sure science would tell them that these sweet little girls were anything but. did they appear manipulative to you? >> absolutely. i'll give you a for instance. jasmiyah is in one room. tasmiyah is taken to a smaller interview room. it's apparent that tasmiyah knows there's a camera and there's a recording system in that room. and she starts to pray. >> i really want them to catch this person. please, god. >> she knew at some point in time somebody would watch that video and they would see a young, innocent, sweet girl asking god to help law enforcement find the person who did this. >> reporter: and meanwhile, at