For me this was the second biggest "WOW" moment to the ending of the game itself.
He never reveals how he knows John, and John tells him, "Tell me how I know you or I won't be responsible for what I do," to which the man replies, "Oh, but you will. You will be responsible."
Then when John says, "Damn you!" the man replies, "Most people do." John then shoots him, but the bullets have no effect, and the man vanishes.
My personal interpretation is that he was a manifestation of John's conscience. (Most people damn conscience, and it tells us what we are responsible for.) I think John may not be "all there" so to speak.
It's supposed to be God. This is why he sends John on savior missions, example: stopping the man from cheating on his wife. I personally feel they should have left this out of the game, because it turned it from a somewhat believable story, to complete fiction..
I tried telling myself that maybe John was just a little crazy, but that doesn't even work, because how else could he know that the guy was going to cheat on his wife and at that specific location.
The most likely way to look @ it is Death. He sends Johnon quests that determine his moral fiber, which ultimately tells death where he should go when he dies. I got that feeling from the minute I first encountered him because he was on that hill top cliff the 1st time and it was after a storm so the cliuds were a rolling deep grey. It added to the effect nicely. I think not only was it a great choice for the game as a side quest, but it was really well done. good topic TC ^_^
XBL GT: PerfektMachine "Tim & Eric Awesome Show Great Job!" is #@$%ing stupid. Really. <-- My sig. until that show is off the air for good ^_^