I'm curious why you think the bodies were moved?
Because the searchers didn't find them until the next day?
It's been noted through MSM, family members, searchers etc that the primary focus of the initial search was the trails and the area immidiately connected to the bridge.
They simply had not moved east at that point and searched that area where they were ultimately found. Its not as if Searchers simply walked over that area and they wern't there
The bodies were located in an area 1/2 mile away around a sharp bend of Deer creek and was not likely able to be seen from where early searches were conducted.
There were also early reports that the cell phones were pinging all around town and now based on what many have said, LE, The family members etc that almost certainly was not the case either.
Why are we so certain that the bodies must have been moved?
Everything about this crime points to a perp that committed a terrible crime and got out of there as quickly as possible
It was in a public place, he likely knew he didn't have much time and trying to sneak back in to place the bodies where people would likely be searching would have been extremely risky, He already couldn't be certain that he was in the clear as far as somebody seeing or hearing something from the initial attack. But he was going to risk taking bodies back to that same area rather than dumping them somewhere where nobody would even think to look?
The scenario is just not plausible and as
@MassGuy has noted before, it would be extremely unlikely for any killer to bring bodies back to the initial scene of the crime after they already had left.