"how would it be possible that three children could be murdered in a such a short time (that the mom claims) with no one noticing or hearing anything? or if the bodies were in the trunk the entire time during the search, wouldn't that be the FIRST place police would look, like a magnet drawn to an obvious place of confinement for children?"
My guess is the children could have met their demise by the river then carried off to another location which might explain why the hound dogs could only sniff their scent to the river then the scent went no where from there because they didn't touch the ground from then on(?)
see my post
http://www.freerepublic.com/focus/news/1430377/posts?page=196#196
there was no foul play
Just a terrible accident