Since Arizona is a VERY DRY HEAT we have what is called swamp or EVAPORATIVE COOLING, it is extremely cheap to run since we have to run it all the time here it doesnt run your bills up, it basically creates moisture in the air since it is so dry here put a little humidity in your house while cooling you off at the same time you can read the technicals here, VERY FEW people here in Arizona have Air Conditioning, in the desert evaporative cooling is the only way to go.
Again I am STILL VERY INTERESTED in why the Police feel they need to provide SECURITY for this family, this is a CLUE.
Evaporative cooler - Wikipedia, the free encyclopedia
I live in So Cal. which is semi-desert. Not at all as dry as AZ, but I have to run humidifiers for the same reason. But swamp coolers don't seem to make the house cool enough! Give me air any day.
In any event, I agree that there is a clue there. It points to someone outside the family, to me.