I get a VERY bad feeling about this case
IF it's true that the body found was dismembered, and it is that of a child, probably the body of Jessica, and it was dumped very close to a road, I belive the killer intentionally dumped the body in a way so that it would be found as soon as possible, meaning the killer WANTED the body to be found!
And if the killer then dumped additional bodyparts in other locations, pretty easely found (at Standley Lake ? did he possibly leave some kind of message at the remains found yesterday?) then this murder case is more than "just" a pedofile murdering his victim, in order to silence his victim.
IMHO this might be a very sick, experienced, and dangerous pedofile sexual sadist killer who committed some kind of organized "ritual killing/dismemberment/disposal of the body" to satisfy his sick needs, as well as to "play with"/taunt the media and police.
If this is the case, it is VERY VERY VERY bad situation... I hope I´m wrong!