Looting has long been one of the most disgusting crimes on the books. It's a moral crime of kicking someone when they are down. A lot of shooting and hanging went on of those that were caught throughout history. What would you do if you found someone rummageing through what was left of everything you ever had.
I remember one guy's line during the 65 Flood in Denver. Looting could be cured by a visit from Dr. Smith and Dr. Wesson.