nts;
I get where you are coming from, you have a couple of angles, curiosity, need for sound science to back up things, and perhaps are studying to be a defense attorney.
The sad thing about the adipocere and the human decomp is that they were both in the truck of KC's car.
Adipocere testing is already done for the State, and, the defense's expert on that, will show it was there and it was human. That should not be in a trunk of anyone's car. It will not be found to be food or a nice fresh pig melting away in KC's trunk. Even a trace amount is too much.
Human decomp smell was noticed and already recorded by Cindy, George, and Yuri, I am not certain whom else, not going to look up the doc dump links right now. The new "sniff test" is great but unnecessary. No other beast or product smells like human decomp. The new science is great, it may finally get it's first trial use, which is it's purpose. It too will be tested by a defense expert. That is what experts are for. DNA was fairly new in murder trials in the early 90's. I remember a case my boss spent months of research trying to prove it fallible. Guess what, DNA testing is fallible, however, even the defense DNA expert found the same results with their own tests, and found no error in reviewing the State's tests. In every DNA case, both sides have experts.
Keep in mind at trial, both experts will use terms as "consistent with." That is just the scientific and probably legal way things must be stated. There may be some arguing from the experts that sounds good, the defense experts will try to make a lengthy argument to suggest some doubt. However, jurors are usually pretty keen, and will realize just what I said above, neither element should be in anyone's car. There is something wrong here.
I say this to help you to research some on the topics off of WS, we are not experts we have just learned by following cases. Try the internet, try law libraries, try scientific research. Whatever you can. I am just telling you these things so you can grasp the topics at hand.
Best of luck in your research!