0 jodi from the start. >> i knew in that very moment that jodi arias did it. >> he turned to me and said jodi did this. >> ryan burns thought he knew jodi, and the girl he knew was no killer. >> i honestly and genuinely didn't believe she could have had anything to do with it. i thought there is no way. i mean this girl wouldn't even let me kill a spider on the wall because she didn't want to hurt god's creature. i mean -- >> then you started to hear from other friends of yours and people that were friends of travis that they suspected her. >> right. people told me not to take her calls. people told me not to talk to her. but at that point she had become either a good friend, that this is a horrible time to turn a back on her, or it was just the situation where, am i really talking to a murderer? >> aaron dewey wasn't sure what to believe. jodi he said played the role of the innocent perfectly. 13 days after travis' murder she volunteered to talk to the mesa police. asking dewey for a ride to the station. tell me what happened in the car that day? >> ironically nothing out of the ordinary. she was acting like nothing was going on. >> and she came out and said what? everything's fine? >> we're good. let's go home. >> what else did she say about travis' murder? >> she claimed to know nothing about it. you know. she was saying she wasn't there. that she hadn't seen him in months. >> that's the story that jodi told police, as well, and the one she stuck with for weeks, up until the day police took her away in handcuffs. and that's when jodi's story started changing. >> when we come back, jodi's bizarre encounter with detectives and her last encounter with travis alexander. "love and death, cause on camera, for all the world to see. >> was there something that involved mr. alexander in the shower? >> yes. e over to mission a for a final go. this is for real this time. step seven point two one two. verify and lock. command is locked. five seconds. three, two, one. standing by for capture. the most innovative software on the planet... dragon is captured. is connecting today's leading companies to places beyond it. siemens. answers. even the inside of your dishwasher sparkles. whoa! kitchen counselor. see, new cascade platinum is unlike finish gel. it not only cleans your dishes, it helps keep your dishwasher sparkling. [ female announcer ] new cascade platinum. a talking car. but i'll tell you what impresses me. a talking train. this ge locomotive can tell you exactly where it is, what it's carrying, while using less fuel. delivering whatever the world needs, when it needs it. ♪ after all, what's the point of talking if you don't have something important to say? ♪ mamake a wish!h! i wish w we could lie e here forevever. i wish thihis test dririve was , so we e could headad back to thehe dealershihip. [ [ male annououncer ] it's p practicallyly yours. testst dri! bubut we stillll need your s signature.. vovolkswagen s sign then d drie is back.k. and d it's neverer been easisir to get a j jetta. that's t the power of german n engineerining. get $0 dowown, $0 due at t signing, $ $0 dep, anand $0 firstst month's p pt on any n new volkswawagen. visit vwdedealer.com t today.