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

Nope. IF she was that badly injured, you wait till she's so bad that you "have" to kill her instead of going for help? Oh, didn't want to leave her alone? Well, he wasn't much help being there either.
I was curious if the autopsy lined up with his story. Sounds like garbage to me but never know...people aren't very smart in general.