I do not believe her body was 'stolen.' I believe the scene was interpreted that way.

Here's one hint: what body snatcher feels it's important to remove jewelry from the deceased's body and leave it in the empty coffin? Why would a body snatcher care about removing jewelry? That implies to me that whoever removed Julie was someone familiar with the cremation process and knew jewelry is removed (and not cremated with the body).

That one clue alone infers that Julie's body was taken by an 'insider' or someone in the industry and probably was transported and cremated. Julie's wish was to be cremated and I think that's exactly what did happen, albeit not in the right/organized/documented way. What happened was, I believe, a big screw-up of some kind and things got out of hand quickly. Sure, Dick could have gathered together random ashes and present those as 'Julie,' but perhaps even he was caught completely off guard and didn't want to admit any mistake whatsoever. This huge story feels like a lie to me.

Body snatching is just not something that occurs often and to say it had to occur in this case is, IMO, farfetched to the point of unbelievability. An embalmed body will still decompose, albeit slower, but decompose it will. She's either been buried or cremated. I don't believe she's stored in someone's freezer, taken as some kind of prize.

She won't be found; I believe she was cremated and the jewelry being removed and left behind is one tell-tale sign of this. It's a horrible fuck up, but a fuck up is what I think did happen in this case.