Well, let's see Mrs. G....the things that have crossed my mind are.. that LE has found DNA on the items taken from the home...such as the bedrails, the headboard, etc.. and that as has been discussed that suspiciously the "new" mattress in Zahras room had no DNA from Z..meaning she never had even slept in it..Thus leading them to the important search for the "original" mattress which LE feel will have a significant amount of blood/DNA of Zs on it...
I have also thought that possibly they already do have the prosthetic leg[also possibly with traces of blood,,of course am just guessing here].. but possibly thats why they ask for the serial #, etc for Zs leg because they've already found it...
Something is telling me that LE is thinking they will not recover her body...I cannot explain exactly why I believe this but I do...I mean they were adamant about that they were not looking for a body in that landfill..why not? why would they not believe that possibly her body was in that landfill? unless they already knew exactly what had become of her body,,,kwim???
as I said am only guessing here, but at this point thats all we can do...