that's kc checking his email. that's kc applying for a job.take a body to decay." suspicious, maybe, but not enough. and then he did this. joey ramirez: he pulled up a facebook page. it showed there was going to be an awareness walk in the near future. a walk to help find maribel. it was. he google mapped that park and zoomed in onto it. he then panned out, navigated over about 8 to 10 miles. this area that he was zeroing in on, was it an area that had crossed your field of vision at all? no. josh mankiewicz (voiceover): here, kc is google mapping a place that no one had searched. watch as he zooms into that area with the tree. josh mankiewicz: that tree didn't figure in the investigation in any way? not in any stretch of the imagination. and no one had searched there. no. and no reason for that to be in the paper or anywhere else. no. it's out in a remote canyon location. josh mankiewicz: but he's looking at it. scott simmons: yes, yes. josh mankiewicz (voiceover): by the time kc was walking out of the library that afternoon, police were alre