Wasn't it said that ZA participated in some of the searches? If that is the case and he help search in the area where her body was eventually found, maybe he figured that if the area had already been search, there would be no reason for LE to go back and search that same area again. I wonder if LE has information on what searchers covered that area (e.g. if JA was a volunteer searcher, was he part of the group that searched that specific area).
Also, my friend's murderer was located because he had her phone and was located by the pings. He was able to be located by triangulating the pings off several different towers (the point where they met between the towers) which narrowed down to a specific small area:
http://www.hacking--thealliance.50megs.com/images/cell_triangulation.gif
That would be a very clever thing for a murderer to do. I've never thought of that before. I'm not sure ZA's criminal profile puts him in that level of cleverness though...
The stuff about Holly's cell phone....I'm honestly not sure how reliable the information is. It was reported by Without Warning where her phone was found, where her sim card was found, where her phone was pinging, but then the TBI was all "This is hogwash!" The TBI is saying that it's not reliable, the news station who reported it said that they had the blessing of the Bobo family to run the story and thus far the Bobo's haven't come out and denied anything reported by Without Warning regarding the phone. The news station also said the TBI didn't complain about the info until after it was reported even though they knew the report was coming up. I lean to the side of believing it since Karen Bobo hasn't specifically come out to say that it's false, but I can't find any source for that information that didn't come directly from Without Warning. I'm not sure what to think.