IndepMo, I noticed on your theory (which makes very good practical sense BTW.) that you have presented a detailed map. Do you think you would have time to update that to where you know there have been searches - especially by the river? Or is this too much to ask? Thanks!
The only thing I know of by the river that was stated was "they searched along the tracks" and the day they got called out on the kidnapping, KCFD was doing training and had boats in the water and I understand they went up and down the river. To what extent or detail, I don't know. I know there is another thread dedicated to searches that might list them all.
What I did figure out just from driving to that area, I don't know if someone would have attempted to walk across those tracks (plus the loose rock that is on the ground beside and between them, there are two sets of tracks), and then even considered walking to tthe river. Theres a little bit of an incline along the bank. You could do it in the daylight. With that being said, there are other locations along the river that you could walk up to easier.
I'm still convinced those phones went straight into water to stop pinging. If someone would have even drove 5 miles north south east or west with those phones I'm certain there would be a record of the pings, and we would have heard on one of these media frenzy acting tv stations that LE was out searching an area north, south, east or west. We've not really seen them leave the neighborhood so that's why I'm leaning the direction I am.