So now his wife has confirmed he had his backpack, wallet, and water, and his watch wasn’t a smart one, and he just said he was going for a walk. He also spoke about his walking some time ago and said he liked to walk and walk fast as it got his heart rate up.
the one journo who speculated he did it as he was unwell has not repeated the claim and is unable to back it up, so pure bullshit and can be discounted.
it does look like he simply went for a walk as is very common behaviour, they obviously thought back to the villa, or they’d have looked earlier, so he must have said that, and something unexpected and tragic has happened,
it’s possible it’s something like he slipped and broke an ankle, so sought shelter somewhere, ie a cave, and that’s why they can’t find him. Or he had a sudden fatal heart attack and as we can see from some of the search videos some of the terrain the rescuers are kneee deep . So if he fell they’d not see him unless they stumbled right on him.