people in the world for it to be another person. that's how accurate the testing was. they knew it was andre edwards. guilty. dead, and the neighbor says the killer is a window peeper. >> she was uncomfortable about that. she did not feel like it was a very safe place. >> i had no idea how this could happen. >> despite the evidence, the case can't be solved. >> we're working on it, but we don't have any viable leads at this time. >> until police find evidence their suspect had killed before. >> i don't think he was finished. i don't think he would have stopped. >> for stephanie bennett, graduating from roanoke college was only the start. armed with a business degree, she took a job with ibm and was

anxious to finally earn some money. >> she was really starting her life. she was a young woman with a lot of potential. she was excited about being on her own. >> but after working there for about a year, one day, she just didn't show up. >> she was a very responsible young woman. she was somebody that always showed up to work on time. when nobody could get in touch with her, everybody got concerned. >> so family members asked her apartment manager to check up on her. >> 911. the location of your emergency? >> i need somebody to come down to lakeland drive immediately. i've got a dead person. >> is the person conscious? >> she's dead. >> stephanie was found dead on the bedroom floor. >> she had a very dark indention around her neck, which was obviously due to strangulation.

>> stephanie had not an enemy in the world. i was flabbergasted. i didn't know why this would happened and why it would have to be stephanie. there was no reasoning for any of this at all. >> there was no sign of forced entry into her ground floor apartment, although the killer might have come in through her bedroom window. >> the window screen had been removed from that window, which would indicate that the someone had possibly gone in through that window.someone had possibly gone in through that window. >> nothing was stolen. but some items in the apartment, a phone, a water glass, and a box of tissues were found in the closet of the second bedroom. >> the closet itself almost looked like maybe somebody had been in that closet and waiting. >> the killer was apparently wearing gloves. >> they told me there were no fingerprints at all at the crime scene of anybody other than the ones that belonged in the apartment. >> outside, in a line of bushes near the apartment, investigators found items that might have been linked to the murder.

>> there were six pair of women thong underwear strewn in those bushes. at that point it appeared that this crime may be sexually motivated in nature. >> none of these items, however, was stephanie's. the medical examiner estimated that stephanie was killed some time around midnight. investigators learned that stephanie was on the phone with her boyfriend, walter robinson, around 8:00 p.m. so, walter was eliminated as a suspect since he was a four-hour drive away from stephanie's apartment and had witnesses to prove it. >> stephanie, she was certainly a low-risk victim. she didn't engage in anything that could be characterized as risky behavior, just a normal girl from a very good family. >> then police learned of an e-mail stephanie sent several weeks before her murder. >> she had e-mailed my sister

and said she was afraid, but she never conveyed that to me. >> stephanie was afraid because a window peeper had been seen around her apartment building. >> there had been a report of a peeping tom. and when she found out about it, the peeping tom hand been looking in their window. the peeping tom had been spotted around her apartment. she didn't see it but a neighbor saw it and reported it. >> this alleged window peeper was now the prime suspect. taking charge of their type 2 diabetes... ...with non-insulin victoza. for a while, i took a pill to lower my blood sugar, but it didn't get me to my goal. so i asked my doctor about victoza. he said victoza works differently than pills, and comes in a pen. victoza is proven to lower blood sugar and a1c. it's taken once a day, any time. and the needle is thin. victoza is not for weight loss, but it may help you lose some weight. victoza is an injectable prescription medicine that may improve blood sugar in adults with type 2 diabetes

when used with diet and exercise. it is not recommended as the first medication to treat diabetes and should not be used in people with type 1 diabetes or diabetic ketoacidosis. victoza has not been studied with mealtime insulin. victoza is not insulin. do not take victoza if you have a personal or family history of medullary thyroid cancer, multiple endocrine neoplasia syndrome type 2, or if you are allergic to victoza or any of its ingredients. symptoms of a serious allergic reaction may include swelling of face, lips, tongue or throat, fainting or dizziness, very rapid heartbeat, problems breathing or swallowing, severe rash or itching. tell your doctor if you get a lump or swelling in your neck. serious side effects may happen in people who take victoza including inflammation of the pancreas (pancreatitis) which may be fatal. stop taking victoza and call your doctor right away if you have signs of pancreatitis, such as severe pain that will not go away in your abdomen or from your abdomen to your back, with or without vomiting. tell your doctor about all the medicines you take

and if you have any medical conditions. taking victoza with a sulfonylurea or insulin may cause low blood sugar. the most common side effects are nausea, diarrhea, and headache. some side effects can lead to dehydration, which may cause kidney problems. if your pill isn't giving you the control you need... ask your doctor about non-insulin victoza. it's covered by most health plans.

i remember how steph was never worried about what others thought of her and lived life in such a free-spirited way. she was a dependable friend and a beautiful person. >> the murder of 23-year-old stephanie bennett was difficult to solve because it appeared there was no connection between stephanie and her assailant. >> i have covered a lot of murder cases and i don't think there was ever a case that caused so much fear and concern in the community as this one. >> every day when i walk into my office, i see stephanie's picture. and it's a picture that was taken of her smiling, of her having fun with her friends, having no idea that she would be

dying at the hands of someone i believe was truly evil. >> during stephanie's autopsy, the medical examiner found signs of sexual assault and recovered a dna sample. this sample was compared to dna samples of all criminal offenders in both the state and national dna databases. there were no hits. >> there was not a lot of other evidence that was found at the crime scene. it appeared almost like what the suspect brought with him, he took away with him. >> investigators also compared the dna to every male who had any contact with stephanie, more than 250 people. and no one matched. police spoke with dozens of people who lived in the apartments near stephanie bennett's. many reported seeing a tall, thin man wearing a sweatshirt loitering in the area.

one of stephanie's neighbors saw this person looking into stephanie's window. a police artist drew a sketch and released it to newspapers and local television stations. >> the phone calls began pouring in. because it was a high-profile case here at that time. numerous leads came in. >> but after tracking down hundreds of leads, only one appeared promising, a convicted sex offender who lived in the area. >> we were able to go out and make contact with this individual. it looked very promising early on, and got a dna sample. our hopes were really up at that point. and we got the call back from the state bureau of investigation that it was not a dna match. we were very disappointed. >> with nothing else to lose, investigators went back and reinterviewed the people in stephanie's neighborhood who claimed they saw the window peeper in the area.

this time, one neighbor reported some new information. >> we actually had one that reported seeing this peeping tom walking a dog that appeared to be a large rottweiler type dog and that he saw him walking him from bridgeport apartments over into dominion apartments. >> stephanie lived in the bridgeport apartments. >> so we took our focus from bridgeport over to the dominion apartments. >> apartment managers there remembered a tenant with a big, black dog who had since moved away. >> their very words to us were, "we know who you're talking about. his name is drew planten and he is a strange bird." >> 35-year-old drew planten had no criminal history, wasn't married, and worked analyzing fertilizer ingredients at the north carolina department of agriculture. >> very reclusive individual. later we went and interviewed people who knew him and had worked with him. and he was very much to himself.

very few friends. >> when police spoke with planten at his workplace, he claimed he had never before heard the name stephanie bennett. >> there wasn't many people within a 50-mile radius that was not familiar with this case. >> planten refused to go the police station so officers made an appointment to meet him at his apartment the next day. >> we told him we would see him at 5:00 and drew planten started shaking uncontrollably, like he was freezing cold. and it was so bad, that i looked back at him and said, "are you okay? and he said, "i'm fine." >> at that meeting, planten denied any involvement in stephanie's murder and refused to provide a dna sample. >> we always said maybe when that first person tells us no, that will be our man. >> but police had no evidence against planten and he bore no resemblance to the composite sketch.

so they couldn't get a court ordered dna sample. for now, it appeared police had hit another dead end. ameriprise asked people a simple question: can you keep your lifestyle in retirement? i don't want to think about the alternative. i don't even know how to answer that. i mean, no one knows how long their money is going to last. i try not to worry, but you worry. what happens when your paychecks stop? because everyone has retirement questions. ameriprise created the exclusive confident retirement approach. to get the real answers you need. start building your confident retirement today. ♪ ♪

♪ the beautiful sound of customers making the most of their united flight. power, wi-fi and streaming entertainment. that's... seize the journey friendly.

police had no probable cause to force drew planten to provide his dna sample for testing.

but one of their scientific experts had a suggestion. >> i said we need to get a sample that was more intimate from him. we need to get a sample which he had touched or used, such as a cigarette butt or a toothbrush, or an item of clothing. >> but that wouldn't be easy. it seemed planten knew he was being followed. >> surveillance was conducted on drew planten for a week, at work and at home, and we could not obtain any dna from that week's worth of surveillance. >> ultimately, investigators followed planten to a restaurant. but planten was one step ahead of them. >> he ate nothing but finger foods. when he would get up to go to the bathroom, he would take his straw out of his cup and put it in his pocket and take it to the bathroom with him. he flushed all of his napkins.

>> for dessert, planten ordered some banana pudding, which he ate with a fork. >> finally he picked up his fork and took two bites of banana pudding and took a napkin and wiped that fork for about five minutes and left that fork. and, of course, our undercover detectives recovered that fork. >> analyst mark bodet performed the analysis. >> i got a mixture of dna samples, meaning there was one strong profile and one weak profile on there as well. >> apparently, the restaurant hadn't properly cleaned the fork. the strong profile was from an unidentified female. the weaker one, from a male, was compared to dna from stephanie's rape kit. >> the one weak profile on the fork was very similar to the profile that was found on the vaginal swabs coming from stephanie bennett. >> but this profile was so weak, it would be inadmissible in

court. >> it was a partial match, which told law enforcement and told me that we were on the right track. we just needed to get a good dna sample from drew planten. >> since planten worked for the state, investigators got permission to search his workplace. mark bodet swabbed his computer keyboard, his radio and other items he handled. dna from those skin cells was compared to the biological evidence from stephanie bennett's rape test kit. >> the dna profile that was obtained was an exact match to the dna which was obtained from the sperm sample from the vaginal swabs. >> investigators believe this dna evidence placed planten at the scene on the night of stephanie's murder. based on the evidence,

investigators believe the killer broke into stephanie's apartment through the bedroom window and waited for her in the closet. investigators believe stephanie arrived home, then called her boyfriend some time between 8:00 and 9:00 p.m. prosecutors think her killer watched from the second bedroom and that stephanie was completely unaware anyone was there. later, after stephanie went to bed, he attacked. the evidence shows she was sexually assaulted and strangled to death. but the killer left valuable dna evidence behind. >> i think calling mr. bennett

the day that we arrested drew planten was one of the highlights of my career. >> when police searched planten's apartment, they found pornography, lock-picking guides, and knives. they also found other disturbing evidence that opened the possibility that planten may have killed before. the keys to this home belong to mark and alissa anderson. they bought the place four months ago on what was arguably the scariest day of their lives. neither has any idea what the future holds for them. but they bought into a 30-year mortgage anyway. that was bold. they must really believe in themselves. buy in. quickenloans/home buy. refi. power.

based on 6 different criteria, why did a panel of 11 automotive experts, name the volkswagen golf motor trend's 2015 car of the year? we'll give you four good reasons. the volkswagen golf. starting at $19,295, there's an award-winning golf for everyone. meet thsuperpower.ewest energy

surprised? in fact, america is now the world's number one natural gas producer... and we could soon become number one in oil. because hydraulic fracturing technology is safely recovering lots more oil and natural gas. supporting millions of new jobs. billions in tax revenue... and a new century of american energy security. the new energy superpower? it's red, white and blue. log on to learn more. i am rich. on the grounds of my estate, i hob nob with the glitterati and play equestrian sports. out on the veranda, we enjoy finger sandwiches and other assorted dainties. i wear nothing less than the finest designer footwear. wherever i go, the paparazzi capture my every move. yes, i am rich. that's why i drink the champagne of beers. the switch to t-mobile is on.

even verizon customers are seeing the light. t-mobile has america's fastest 4g lte network from the bay area to the big apple. and more data capacity per customer. need one more reason? get two lines of unlimited 4g lte data for a hundred bucks save without settling on america's fastest 4g lte network

when investigators searched drew planten's apartment, they found several pieces of mail addressed to a woman in lansing, michigan, rebecca huismann. the postmark was six years old. a background check revealed that rebecca huismann was murdered in lansing six years earlier, and the case had never been solved. >> coincidentally, drew planten was a student at michigan state university at the time, which was also just a few miles from lansing. rebecca huismann was working as a topless dancer at the time of her murder. it was something she had not planned on, but she needed the money. >> she was a very beautiful young woman and she was trying to make some extra money so that she and her fiance could get married.

>> after rebecca was finished work one october night in 1999, a bouncer took her to her car and she drove away. as she drove up to her apartment, someone, possibly a customer from the strip club, may have made an advance. whatever happened, the killer fired with a .45 caliber handgun. >> i need an ambulance. >> what is the problem there? >> my girlfriend. i just woke up, and i noticed that she wasn't with me. so i go out there and she's out in her car and her door's open, and i go out there and she has blood all over her face and i can't hear a pulse or a heartbeat or nothing. >> the motive clearly wasn't robbery. nothing in her vehicle had been disturbed. rebecca's purse was still there. >> it looked like, to me, based on my experience, that it was a personal crime. just because shooting somebody

in the face one time. >> on the ground near the car was a .45 caliber shell casing. it was the only evidence at the scene. >> we didn't have much evidence to work with at all. we had no fingerprints, tire tracks, footwear, nothing. >> everyone who worked with rebecca said she made a point of having no personal relationships with any of the club's patrons. >> she would leave the club and not have anything to do with it outside of what she did there for her employment. >> dozens of interviews were conducted. no clear suspects emerged. >> we still focused on the club, whether it was a customer or not. we were trying to look at some tapes, surveillance tapes and things of that nature. but there wasn't any altercations between her or any of the dancers. >> when investigators in raleigh, north carolina, found rebecca's mail in drew planten's apartment, they called lansing investigators with the news.

they said that if you have a .45 caliber handgun, please let me know. he says we got two. i said keep 'em. planten's two .45 caliber guns were test fired. analysts were especially interested in the marks on the shell casings. imperfections from the firing pin are imprinted on the shell casing back when it's fired. and the imperfections on each firing pin are unique to each one made. and each are unique to each g when the shell casing was compared to the shell casing from drew planten's gun, the results were unmistakable. >> some very well defined linear

marks, parallel running linear marks that were present on the primer surfaces of all the tests and on the evidence cartridge that was entered in the site in michigan. marks, parallel linear marks that were present on the primer surfaces of all the tests and on the evidence cartridge that was entered in the site in michigan. >> they also compared the lands and grooves on the test bullet to those on the fatal bullet. those also matched. >> my opinion that it's that gun and only that gun that could have fired it. >> by this time, planten was already in custody in north carolina and things weren't going well. at his court appearance, he refused to walk and had to be strapped to a gurney. >> when he was wheeled into court for his first appearance, he did not open his eyes. and i believe in drew planten's world, as long as his eyes were closed and he did not see it, it may not have been happening. >> but no one will know for certain all the details in either murder. shortly before he was to go on trial in raleigh, north carolina, drew planten

suffocated himself with a plastic bag in prison. >> i was disappointed that we weren't able to have a trial, that we weren't able to sit in the courtroom and hear a jury come back and say you're guilty of the first degree murder of stephanie bennett. >> mr. planten was obviously a predator. we obtained information and evidence inside we obtained information inside the apartment that led us to believe that he had looked into doing this, possibly, with other females. >> investigators are certain that the forensic evidence would have gained a conviction. but the real satisfaction is knowing that the evidence led to his capture. >> after we found out who planten was and did the search of his house, we did find some information on somebody he was probably currently watching for some time. it was very eerie to find that person and realize that you had maybe just saved her life by clearing this case. >> well, i know that forensic science played a huge role in this case. and, really, without the forensic science, without the ballistics, without re-creating this case, rebecca huismann's murder would definitely have

gone cold and unsolved. i truly believe that. >> forensic science was phenomenal in this case. it was -- as one person put it, it is where old fashioned police work meets modern science. up next, a predator terrorizes a texas town. >> i said i have a family, i have a son. just please don't rape me. he started to choke me. i couldn't breathe. i was gasping for air until he stopped. >> no one knew what he was going to do next. >> we had a huge problem. >> when police find him the dna evidence exonerates him. >> he was smart enough to outwitt the investigators. >> i knew he was just evil, and i never knew that there was evil people on this earth like that. >> it was 9:00 p.m. in texas city, texas. 19-year-old stevie green was