Dusek's theory used a lot of 'missing' evidence.
There was the blood all over the 'missing boots'.
There was the blood all over the 'missing comforter'
There was the 'missing blue blanket' that Danielle was wrapped in to keep the bugs from getting to her.
There was the 'missing orange UFO' that left orange fibers all over DW's house and Danielle's body.
There was the 'missing blue/grey UFO' that left blue/grey fibers on Danielle's body and in DW's MH.
There was a missing breifcase with that had a million dollars in it, that police still refuse to return to me.
There is the 'missing' NASA Spacesuit that DW used to enter the VD home.
Seriously, Prosecution/LE's theorized all kinds of things and then searched for the evidence to prove it. Apparently, when they couldn't find the evidence they needed, they either faked it, or declared it missing.