Truly I understand how it would seem impossible that SK's body wouldn't have been found by now, especially if you are used to an urban setting. Do you remember the story of Steve Fossett, the adventurer whose plane crashed a few years ago in Nevada? CAP searched and searched and searched for the wreckage and never found it. A hiker stumbled onto it long after the search had been called off--over a year after he had gone missing.
http://en.wikipedia.org/wiki/Steve_Fossett Granted, that is a much larger area to search, but searchers were using aircraft and looking for shiny, metal wreckage.
If Steven is in the hills beyond the golf course (which is the theory I'm leaning toward now) it really is like looking for that proverbial needle in the haystack. Carbuff, Sarx and maybe others can attest to how difficult it is to search when you are away from cultivated, developed, manicured, patrolled city and in wild, inhospitable back country.
Here is another story about a skeleton which was found at Webb Hill just outside of St. George and literally a stone's throw from a radio tower.
http://www.websleuths.com/forums/archive/index.php/t-35636.html A bunch of the information about this case is no longer available online which is a bummer because it is such an intriguing and sad mystery. It is estimated that this young man had been there since around 1918 and maybe died during the flu epidemic. He lay in a little cave, undiscovered, for 70 years. He was barely outside the city, close enough that kids on an afternoon hike stumbled upon him.
That SK's body hasn't been found if he did indeed commit suicide doesn't weaken the theory in my mind. The only thing that I'd like to neatly wrap up is why he was there. In Henderson. I think it was Laytonian who said that the reason may end up being something we just aren't ever going to be privy to but that would make perfect sense if we knew. Or something like that.