Lots of thoughts after seeing these pics, but only a couple of comments. First it seems that at least at one time Dale and Michelle were very much in love. Also if I were on the jury I would have a very easy time believing that more than one guy could have become obsessed with Michelle and kidnapped her.
I agree, IMO there are quite a few scenarios that might be possible in the disappearance of MP although DS killing her remains a distinct possibility, and a statistical likelihood, however it does seem unlikely based on what we know so far that is on the public record. IMO