a woman named lindsay aguilar. >> but where was lindsay aguilar?>> we believe she's somewhere. >> in mexico. we're working with federal partners. we're also working with local mexican authorities to try to identify where she is. >> she could be anywhere in mexico, that she may have family members in mexico and in the u.s, and there are definitely people who know about her whereabouts, or at least her track. >> now, days have turned into months and even years as it sells, family continues to maintain her room as if she never left. >> walking inside it sells room. you definitely get a sense that you are frozen in time and taken back to a moment where she was still alive, and that you could envision her, you know, putting on her makeup, picking out an outfit for the night. you can see why they don't want to take that room apart and change it into something else. that is all they have left of her. >> this is our little thing we do every day. >> nearly four years later, eduardo and his family still make the daily drive to eitzel's gravesite. >> she was