When you say "for some reason" you are alluding that there is no answer and you're trying to downplay it, you are lying.
The laptop was turned in by Hunter because it was waterlogged. He signed the form. When he didn't come back in to get it and the owner noticed the illegal things on it, a copy of the hard drive was first given to the FBI, another was later given to Rudy because nothing was done by the FBI.
The emails and photos on the laptop have not been disputed. His business partner has confirmed the emails, and the DKIM of at least one of the emails have been verified.