Young couple goes on van tour of US, boy comes back with van - no girl

Heard on one of the news stories that they won't finish the autopsy, determine the cause of death, for another two weeks. WTH?! CSI Miami gets that sheet done in under an hour!
There was some commentary somewhere that giving out the details could somehow hinder the prosecution process. Same conversation talked about how it could be difficult to pin this on him. His DNA would be expected anyway due to their relationship. That’s really more for the experts to figure out but wanted to note the delay may be purposeful.