None of which is tied to Casey. The car was not hers, nor did they prove that Caylee was the source of any decomposition. If there were fluids that leaked from the bag there would be a ton of residual biological material in the mat. Also, decomposing material is decomposing material, you would not be able to tell the difference from smell. The state failed to prove that that anything was decomposing in the trunk, failed to prove that if there was, that it was human, and failed to prove that Casey (as opposed to someone else who had access to the car) had anything to do with it. In short, they failed completely to make any link, it was complete speculation on their part.
Now, chloroform. I am a chemist, been working with the stuff for 30 years, and there is NO WAY that anyone chloroformed would have enough to accumulate in any measurable extent in the trunk. That claim was just laughable. Sorry if you don't like it, but there it is. If there was chloroform there, it came from something else, most likely from a chlorinated cleaning agent. Further, while someone made a search for chloroform, they failed to prove WHO did that. They claim it was Casey, but again, fail to provide any evidence that it WAS her. If these searches were made at the Anthony house, it wasn't HER computer, maybe they should look at the person who owned the computer.
The duct tape gives no indication of how she died. The state failed to prove when it was placed there, or even IF it was placed there. If it was placed there post mortem, either on her body or with the bag, it obviously had nothing to do with her death. They failed to show that it had not arrived at where it was post mortem, in other words they had NO evidence for that as a cause of death. That was sheer speculation on their part, there was zero evidence to support it. In my opinion the duct tape was placed there post mortem a considerable time after her death simply to hold the head together. That too is speculation, but there is no evidence that couldn't be the case.
One other thing, all of the items found with the body were in some way or another associated or potentially associated with the Anthony's house. The problem however, is that Casy wasn't living there, she was living elsewhere. Does no one think that is at all an odd thing?