a 25-year-old photographer from wisconsin, named teresa halbach. >> she loved being behind the camera. >> the became friends with teresa in college, both working at the same studio in green bay. kim says teresa had a special way with her suspects. she really loved make other people smile. >> the two state in touch after graduation, after they launch their careers. but that would all change suddenly on october 31st, 2005. kim caught a story of the local news -- teresa was missing. >> investigators say the 25-year-old photographer was on assignment for auto trader magazine, when she disappeared. >> my heart just kind of dropped, knowing that it was somebody that i knew. >> what do you do at that moment? >> i felt helpless, because you want to deny it. you want to try to get in touch with her. >> did you try to call her? >> i tried to texture, but -- >> no response. >> wisconsin police quickly launched a massive chart, hosted by a team of volunteers. after two days a big break. >> they had found teresa's vehicle. in a salvage yard. >> tom fassbender was a special agent with the wisconsin