Relationship, giving the detective a theory to consider. Older woman, younger man. Maybe see somebody else. Right. Reporter and that breeds leads to. Jealousy leads to murder. Reporter while he continued to investigate denise, ruvin building that there was a woman there hed been dating for just thats why we wanted to talk to katrina. Reporter katrina ben came down to Police Headquarters for an interview. Shes visibly upset here. Just earlier that day, detective ruvin and his partner had told her that eric was dead. I just want to start again by saying just thank you. You dont have to be here. Thank you, thank you, thank you for doing this. I dont care. Oh my god. I want to know, too. Yes. Reporter they wanted whatever leads she could give them. But they began with the basics. How did you meet eric . I met eric outside, like two weekses after id been there. Reporter outside their building. And he asked me if i was a nurse. Because he was starting some kind of Agency Nursing agency like what i worked for. Reporter katrina did work as a nurse for the nih, the National Institutes of health. It turned out she and eric had plenty in common. Im a basketball fan and so is he. Reporter the relationship friendly. Katrina said she and eric had been dating weekly, usually on mondays, ever since. Katrina wanted to know about progress in finding her lovers killer. We cant really tell you whats going on with the investigation. And the reason is because youre a witness. Oh, my god reporter she asked if they could at least say where eric died. Well, i think we can tell her where it happened. He was killed in his apartment. Reporter the interview topic returned to the vibrant eric she knew. This guy had so many goals and so many dreams. Its just crazy. Its like he was having the best time of his life. And now hes dead. Reporter that explained, katrina said, why he never answered her recent texts. Did he make any calls on tuesday . Am i the only am i the last person . Can you tell me that . I mean, i dont know if he stopped calling me or if he wasnt answering because he was dead . Because ive been depressed and suffering and mad and crying, because im thinking hes not talking to me. Weve been like this. Just to settle my heart, you know . I think your heart can be settled. Reporter the detectives consoled her but also continued to probe about that last night together. Two days before erics body was discovered. I went to his place monday. He stayed with me sunday. Ok, but monday, you went down to his place to watch the game . Yes. Yeah. Reporter but then, she said, the night got strange. Out of the blue, eric said he its like, hey, whatever floats your boat. Reporter but she told him that she wasnt interested. She did agree to ride with eric so he could buy weed at a nearby apartment complex. I didnt know what was happening. Hes never, ever done anything like that around me. Reporter they drove up to this building. Almost immediately, katrina said the pot dealer jumped into the back seat. And it was real quick. I mean, the light was on, the whole deal, whatever they did. And the guy got out. Light could even go out in the because im thinking, if youre going to do Something Like this, turn the light out. Somebody might see me. I dont want to be identified in whatd he look like . He was bald, and he had a skinny guy, scruffy beard. On. I wasnt trying to look at him directly. Im not trying to look like i want to know who you are. Reporter after driving back to their building, eric and katrina spent the rest of the night watching the basketball on each other. Excuse me, if this is too much information, but we had sex for a while, and i went to sleep. Reporter a little later, she told the detectives, she was woken up by the sound of eric talking omeone outside the bedroom through a crack in the door. Katrina thought she could make out a face. And the man looked familiar. She believed the guy to be the drug dealer. Reporter the same guy shed met earlier . Yes. Reporter this was only hours before eric was murdered in his bed. Detective ruvin now had another major suspect. So we concentrated on the drug dealer. Reporter this would prove to be a critical moment in the case, but not for the reasons you think. Coming up Police Strike gold maybe in the drug dealers apartment. Same kind of gun. But struck out with katrina. She flatout refused to give why . You get used to the funk in your mancave. You think it smells fine, but your wife smells this. Sfx ding music starts luckily for all your hardtowash fabrics theres febreze fabric refresher it doesnt just mask, it eliminates odors. Youve gone noseblind to woman inhales use febreze fabric refresher till its fresh and try pluggable febreze. 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One of erics lovers, katrina ben, handed the investigators a it didnt make sense to me. Because i was thinking, why is he here . Reporter katrina told them how uneasy she felt with the dealer in the apartment. It was just a little uncomfortable. He just seemed a little weird. Reporter so at just around 5 00 a. M. , katrina said she got out of there. She said the guy then just came up to her as she was leaving and basically pushed her out with the door. Reporter based on katrinas account, the police believed eric was killed sometime in the Early Morning hours of june 5th. Ruvin brought in the dealer for questioning, a man named william woodfork. And he was like, i have no idea who that is. Never met him before. Reporter did you believe him . No. I knew eric called him. And katrinas story tied him to eric. Reporter ruvin hammered away at woodfork for hours finally getting him to admit he sold eric marijuana the night of the murder. But the dealer balked when ruvin asked why he later went over to erics. And he was like, what are you talking about . He was so adamant about not even knowing where eric lives. You know, im a weed dealer. Im not a deliveryman. I dont deliver. People come to me. Reporter detective ruvin wasnt about to just take a drug dealer at his word. So we end up getting a search warrant for his place. And be recovered a safe from his apartment. And inside the safe was a. 380 handgun. It was just like, did he lie . Is this our murder weapon . Reporter thats the same kind of gun that killed eric. Its the same kind of gun. Reporter the gun was sent to the firearms lab as ruvin checked to see if he could prove william woodfork was in erics apartment. But woodforks dna and fingerprints werent on the door or anywhere else. You look at the security tape . Is he on there anywhere . He was never on the security tapes. Reporter then the tests came back on the dealers. 380. It was not the gun that killed eric. It was the same caliber, but the ammunition was different. So it was just one big coincidence. Reporter now erics dealer wasnt looking as good for the murder. Not only was the gun not a match, ruvin was convinced that the dealer was never at erics apartment. As for denise, the woman who had been erics girlfriend, investigators interviewed her three times. She was cooperative and allowed them to look at her phone. Her phone records put her at home the night of the murder. Reporter so they eliminated denise as a suspect. And again, ruvin started from scratch. You dont just come in to somebodys apartment and murder them while theyre sleeping and expect to get away with it. And i felt like this was my job to find the killer. And i felt like i wasnt doing my job. Reporter the detective circled back to the person who pointed them towards the pot dealer in the first place katrina ben. The woman whod been so surprised and distraught by her lovers death. Now the cops wondered if she had deliberately misdirected them. Back for another chat. Did you think he was the one . Eric . Did i think he was the one for me . Actually, no. But he was trying to convince me that he was the one. Reporter just days before katrina had spoken of eric lovingly, but no longer. I knew he was a ladies man. Im not stupid. At some point i asked her to give us her phone because i knew she exchanged messages. And she just flatout refused to give us her phone. Reporter well, that has to make you sort of sit up and take notice. Yeah, it was a little odd. But at the same time if it was somebody my significant other that was murdered, i think i would do anything to help the police. Reporter and she wouldnt do it . No. Reporter katrinas abrupt change in behavior was strange, even alarming, to the detectives. But all they could do was say their goodbyes as katrina baltimore. At this point there was enough weird behavior from katrina ben. We had nothing solid. Nothing really incriminating, but it was just something not being right there. Reporter the cops had a nagging feeling katrina ben was lying. That pot dealer wasnt in the apartment the night eric was murdered, but katrina was and suddenly she looked suspicious. But suspicions dont make a case. And right now someone was getting away with murder. Coming up a damaged gun helps a determined detective shoot a bullseye. It was recovered the day after we found erics body. And i was like lets just test this gun makes sense. Johnsons believes that bath time is more than cleansing. Your loving touch stimulates his senses and nurtures his mind. The johnsons scent, lather, and bubbles help enhance the experience. So why just clean your baby, when you can give him so much more . Im lucky to get through a shift without a disaster. My bargain detergent couldnt keep up. So i switched to tide pods. Theyre super concentrated so i get a better clean. 15 cleaning ingredients or 90 . 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And ive always had a picture of eric to kind of remind me to case. Reporter unfortunately, what wasnt next to erics photo on ruvins desk was any hard evidence against katrina ben, the woman ruvin thought knew more than she was telling about erics murder. He decided to take yet another crack at his suspect, and along with another detective, ruvin paid katrina a visit up in baltimore. For the most part, her story remained the same. Reporter but katrina was also on guard and defensive. Dont go there with me. Dont go where . No, i feel like youre trying to be sarcastic. Reporter instead of focusing on the detectives tone, katrina should have paid more attention to their clothing. The detective secretly had a tape recorder in his pocket. And thats when i asked her about owning any guns. Did you own a gun . No. Have you ever fired a gun . No reportermed with a warrant, ruvin searched katrinas apartment but did not find a gun. He seized her phone and computer, but cops didnt find anything incriminating. There was no gun registered to her anywhere . No. Reporter and no sign that shed ever owned one at any point in her life. Thats correct. Reporter ruvin kept going. I subpoenaed her bank records and credit card records. Just to see if she purchased any ammunition somewhere. Reporter but you didnt find it . No. Reporter ruvin didnt stop there. He kept looking everywhere. He even went all the way to katrinas home town in mississippi, where he learned something interesting. I talked to her dad, who said that he had guns, multiple guns in the house and that katrina had shotguns before. So we knew she lied. Reporter but that is no criminal offense. Still, ruvin was certain he could eventually find something concrete, and he kept looking. Weeks passed. Then months. I think thats probably the toughest thing about this job is if it goes unsolved for a while reporter you feel like youre letting the family down. Right, exactly. And especially families that do stay in contact with you. Reporter erics family was eager for answers. They were not shy about letting ruvin know that. He gets probably daily phone calls from each one of us, and he was so patient in just explaining reporter detective ruvin never said to you, hey, maybe like one of you could call me and tell the other people . No. Never. And you look at your phone and youre like, you dont even want to answer them because you have no news. Its the same that it was last week. We think we know who did it, but we cant prove it right now. Reporter may 2013. The oneyear anniversary of erics murder approached. And frankly, the investigation had come to a standstill. Ruvin wasnt just angry. He was frustrated. He needed to make something happen. Had killed eric, and he knew a lot of handguns just like it were already in Police Custody all across the d. C. Area. He decided to examine all of them. It was an immense task. He began in Montgomery County. So i decided to look at all. 380s which had been recovered in the past year. Reporter which was about how many . It was about 60 guns. Reporter ruvin combed through the records for each of those guns, most seized by cops in traffic stops or drug busts, but none matched up. Until ruvin read the second to last file. It was handgun number 59 out of 60. It was a gun turned in by a tourist from montana who had spotted it lying by the side of the beltway, d. C. s most traveled road. The only reason the man saw it was because he was parked in d. C. s famous bumper to bumper traffic. It was recovered the day after we found erics body. It was a short distance away and i was like, lets just test this gun. This gun makes sense. Reporter this seems like succeeding against unbelievable odds. One in a million. Reporter the gun was a mess, missing most of its components, and it looked as it might have been run over after it hit the pavement. But the barrel intact. Using spare parts, the Police Firearms lab reassembled the weapon and testfired it. The result a close match to the bullet that killed eric somuah. And on the gun, a serial number. From it, ruvin learned something else. Where was it originally sold . It was sold at a pawn shop in columbia, mississippi. Reporter why was that a big deal . Because that little pawn shop was just a few miles down the road from silver creek, mississippi, which was the hometown of katrina ben. Ruvin just couldnt buy that as a coincidence. So he took another trip down to mississippi. This time to track down the guns original owner, which was harder than it might sound. This gun had multiple, multiple owners. It would take me 30 minutes just to persuade somebody to talk to me. Reporter why . Because in mississippi you sound like a stranger . Thats so weird. Possibly sound like a stranger. Also, nobody wants to talk about guns. They always think that im there to get them in trouble. Reporter it was a lot of shoe leather, and ruvin still didnt have a solid ling to katrina. It would take some persuading from me to even have people talk to me. Reporter but slowly the persuasion paid off. And each would tell us, yeah, i had it for a year. And then i pawned it at this pawn shop. Reporter after interviewing six former owners of the gun, ruvin arrived at a pawn shop that bought and sold it sometime around 2003. So the owner, he was like, we keep our records in diaper boxes in the back of the shed. And the rats were eating on them. So we decided to just send them to the atf. Reporter ruvin offered to come look through those diaper boxes. The response from the atf . Thanks, but no thanks. The atf agent was just saying, just let us take care of it. So we left mississippi really with nothing. Reporter ruvin returned to maryland, wondering if hed hit another deadend. He wondered for about a week. It was late june, now more than a year since eric was murdered, when an atf agent called back. We found these diaper boxes. We found these records, and were faxing a receipt. So i was waiting by the fax machine. The fax came through. I looked at the name, and it was katrina ben. She was the last purchaser of that handgun. Reporter and youve got her. Oh, yeah. It was pretty incredible. I was literally jumping up and down. Reporter now he just had to you decide. And if i was going to do Something Like this, it would be it wouldnt be like this. It wouldnt be stupid. Coming up was katrina ben a monday night girl . A girl who you do not take out, you do not show off and you do not introduce to your friends. She had her purposes. Murder . Eric somuah had been dead murder. But his family, bound together by grief and faith, felt a kind of serenity. I believe that there were certain people that were des