[Cold Heat]

But if he cremates her body, then he destroys the evidence to ever prosecute them. Why would he do that?

Like most cases of a high profile nature, efforts are made to prevent such things as grave robbing, public memorials that would affect the operation of a internment facility and the like.

All physical evidence is a matter of court records,numerous investigations and documents..

None of which show wrong doing.The only things that do that are conjectural pieces on the web that have created a ballyhoo in the absence of any defense against it for privacy concerns..IMHO

[Arthur Wildfire! March]

Or cremation is used to hide things, IMHO.