I was thinking that it does not sound right that "he was confused." "he fell getting out of the car." And yet the wife allowed him to walk off into the night, and the friend came back without him. From what I read earlier, I thought it was said that he and the friend left together for the walk, but then later she says, "He saw him on the walk." And why would the friend leave and go home knowing this person was missing. I do not want to say what I think may be the case, but it seems to me that this wife and friend really put him in danger by allowing him to be out at that hour when he was confused, had fallen and was drunk. He must have been pretty drunk in order to fall asleep in the car on the way back from that last bar. I am starting to think that some sort of cover up is happening. But I could be wrong.