Arizona wilds, even the mountains in the cities will be the death of 100's of tourists who don't respect them.
Once a week we hear of rescues off Camelback Mountain for some thing or another. People constantly go hiking in flip-flops, without enough water or simply not in the proper physical condition to be taking on that kind of challenge. That's without getting to the part about making really, truly bad decisions along the way.
My wife and I have become kind of numb to hearing this kind of news. It's sad but it needs to be said again and again, "stupid" can get one killed. Per documentation and the book above, "stupid" had a big influence in most of these unfortunate incidents.
Wishing you SAFE and pleasant journeys wherever your adventures take you.