I know nothing about hiking in JTNP or anywhere in the desert for that matter. All I know is you need a hat for some head protection from the sun, decent footwear and a ton of water to keep hydrated. I don't have a gun, so it wouldn't occur to me to take one, but I can see that many would -- protection against wildlife and such like. My question is this: if you realize you're lost in a national park - even in the desert during the hottest part of the summer - wouldn't it occur to you that someone might start searching for you reasonably quickly (say, within a day or so of when anyone might expect you to show up, like when you were supposed to check out of the B&B you've been staying in)? And if you just happen to be carrying a gun with you, wouldn't it further occur to you that if you fired your gun, someone searching for might hear it and tell someone about it. As I said, I don't own a gun and I know absolutely nada about them (and I'm not wanting to start any pro-gun / anti-gun arguments). Does anyone know how far the sound of gun fire would carry out there? I realize it will depend on the caliber of the gun and ammo, but do we have any idea what type of weapon Joseph may have had in connection with his job? It just seems to me that since no one reported hearing any gun fire that perhaps that gives some indication of when the fatal shots were fired -- either very, very early in the morning or maybe very late at night. How soon after they entered the park did the searches begin, and were the initial searches conducted on consecutive days? Did anyone stayed camped out there during the night, or is that not allowed (or safe)? Maybe everything hinges on the amount of water they had, but surely they both knew they needed at least a bottle or two each for a day's hike. I don't know, but I just get the feeling this was deliberate for whatever reason.