So where would someone burn a body then be able to move it? Unless it was wrapped up, that would leave a messy trail IMO. Sounds like LE isn't buying what they are being sold. IMO.
http://www.chron.com/disp/story.mpl/chronicle/7356276.html
(snip)
No signs of a fire were near the culvert, indicating that the child had been burned elsewhere and his body taken to the culvert.
"The finding of the body kind of confirmed our worst fears," said Sgt. Brian Harris of Houston Police Departments homicide division.
Police questioned Jonathans mother and stepfather, Angela and David Davis, overnight Monday and spent hours sorting through conflicting statements from family members, neighbors and friends to establish a timeline for Jonathans disappearance on Christmas Eve, Harris said.
"The whole thing kind of stunk from the beginning," he said.