The news reports mention a damaged phone and an amount of blood in the van. Nothing about the phone being bloodied. Both of those things may be relevant, or not. I'm an electrician and I routinely crack my phones on job sites by putting them in pockets, sitting on them or dropping them from very high up. The damaged phone in of itself is not necessarily an indication of something sinister. As for the blood, I've been guilty of slicing myself at work and then applying an electrician's bandaid (electrical tape). Blood could have leaked out and may not be connected to his disappearance. Of course the phone and blood could be connected to the disappearance after all. But both those "clues" aren't "smoking guns" in of themselves.
The only thoughts I have here is that he didn't just wander off and got lost. He either disappeared voluntarily or was made to disappear by someone else. I live not too far from there and ride my motorcycle on that road quite frequently. It's basically farm country with people's front yards/acreages lining the road. Not a place where you would pull over and go for a walk while leaving your vehicle running.