2020: Woman Discovers Own Friend Allegedly Stole $13k From Her Brew for one, brew for all. . She got their trust, then she was suspected of getting pretty much everything else. Their money, even a passport. Chris Connelly tonight, following her for months and thousands of miles. Leading us to ask, with friends like these, who needs enemies? Reporter: It seems that few could set it off in a club like 24-year-old vicheka ly. Over the top for everything. Reporter: Rocking a micro-mini with looks to thrill. A lot of crop tops, tight pants, sexy. Reporter: The woman who called herself "Vee" enjoyed life on the dance floor. She loved dancing, drinking. Reporter: At hotspots in and around Portland, Oregon. She likes attention. Reporter: She liked to stir stuff up, right? Right, yeah. Reporter: Vee's relentlessly over-the-top attitude had its offbeat appeal for young women like Sonja. I didn't even know the girl, and it was like, oh my god, I love you, we need to hang out again. Reporter: For Leilani. She uses her cuteness to make friends and boyfriends. Reporter: And for 22-year-old Taylor nunes. This aspiring pastry chef says that at the start of their four-month friendship last spring, vee was sweet as pie. Your hair is so beautiful. Okay, that's like a lot of compliments. Reporter: But away from the bright lights and loud music, Taylor and the others would come to suspect that vee was a serial identity thief and that she and her famous duck face liked to stick her pals with the bill. She was really good at telling her lies. She's a professional liar and a thief. Reporter: Despite early misgivings, Taylor became pals with vee, who'd had money to take her shopping. She'd even console Taylor after the death of her beloved chihuahua, Leopold. After that she was constantly there for me I thought I could trust her. Reporter: Before long, vee had picked out this apartment for the two of them to share. So obviously, both your names are on the lease because you were renting it together. Should've been. She doesn't have rental history so her name couldn't be on the lease. Reporter: That's what she told you. That's what she told me. Reporter: Pretty soon, strange things started happening. $400 in unfamiliar charges turned up on Taylor's credit card. Then on a shopping run, vee flashed some big-time cash. And she's buying like $2,000 worth of bedroom and house stuff and she was going through her wallet. And there was so much money in there. Reporter: Only 24 hours later, when Taylor checked her bedroom for the money, did she have an idea where vee had gotten all that cash. She stole my social security card, debit cards, pin Numbers and stole $13,000 cash. Reporter: So, right in front of you, she was buying stuff with the money she had stolen from you 24 hours before? I knew that it was her who had to have taken it. Reporter: When Taylor took us to the scene of the alleged crime, her feelings of violation and betrayal were still vivid. I was so distraught, I couldn't even stand on my own two feet. I felt like my whole world was falling apart. Reporter: Along with Taylor's life savings, something small but precious to her was also missing. My really expensive, hair straightener when she was the only person in my room. Reporter: In days, vee had gone from friend to frenemy. Now she was gone, period. She said she was going to go to L.A. For a week. Reporter: That was three months ago and still no vee. Why do you think, out of all your friends in your circle, she picked you? 'Cause I'm gullible. I'm not very good at hiding my emotions or my vulnerability. And I believe that she preyed on that. Reporter: 16.6 million Americans were victims of identity fraud in 2012 and only 9% got the police involved. But Taylor did. Do you think vee qualifies as a frenemy? She's absolutely a frenemy because she's your friend, and then absolutely your enemy. In addition to the cash she took from Taylor, she also stole Taylor's credit card. Reporter: Detective Patrick altiere picked up Taylor's case in late August, spearheading the investigation into vee's activities. His check of open cases showed that this wasn't the first time vee had been accused of putting her pals through the spin cycle. She sought out a certain type of person, became friends with that person and then would victimize them a little bit before doing something to cause her to cut ties with that person and leave. We were best friends. We hung out every single day. Reporter: 25-year-old Leilani Gutierrez says she and vee were also B.F.F.S once. Not for months, but for years! She was even a guest at her wedding. She is very bubbly and very positive all the time. Reporter: Then something snapped. After six years of friendship, vee blew it all in one 36-hour spree late last spring, swiping Leilani's passport and credit card, she says, after they'd gone shopping together and then going buck-wild with it on her own. Some clubs, cab rides. She tried to buy airline tickets. Reporter: On your credit card? Reporter: Have you spoken to her since? Reporter: Sonja Cecil remembers vee laying it on with a trowel. She was rich, she was studying pediatrics, she had basketball star Jeremy Lin Reading her biblical verses. She's actually telling you these things? Yes, and I really hope it's not true. He knows better that. Reporter: When Sonja couldn't find another roommate, vee moved in. The rent? Yeah, about that. Vee ditched months later, leaving $3,600 unpaid. What happened to that friendship? When you think that your friend is lying to you for an extended period of time, it just dissolves. Reporter: To help track down her former friend, Taylor went from victim to crime fighter at detective altiere's request, even getting vee on the phone. Taylor was an amazing, amazing person to work with as far as victims go. Taylor confronted vee about the credit card. And she admitted to everything for that. Reporter: But when Taylor couldn't lure vee back to the apartment where she'd be arrested, she went public, like for this report on local news in Portland. Deputies need your help finding a young woman who stole thousands of dollars. I don't want anyone to feel this way again. She stole my trust. She broke me. She could be doing this right now. Probably is. And it needs to stop. Reporter: With vee on the run we brought these three women together, now united in their crusade against vee. But even with the law on her trail, vee couldn't stop instagramming her whereabouts and her crop-topped cut-offed physique. This is her at the Hollywood sign. How about this picture from las Vegas. They haven't caught her yet. How is that possible? Someone else to come forward and say, "Hey, she's staying with me right now." Reporter: You think someone else has to go through what Taylor or what you went through or what Leilani went through? It doesn't matter. Because it's all too late. Reporter: When we come back, who is vee? Her sister reveals the family secrets and a stunning break in the case. She was in L.A. Some girl called in a tip.