A certain segment has been raiding for copper for a long time. An old building I worked in in downtown Sacramento was flooded because someone stole the copper water pipes on the next building over -- shooting water into our building. This was back in like 2008/2009.
It's just construction theft. Stealings not great but it happens, no reason to get depressed about it.
Not like they were looting straight after the storm or any thing, perhaps that might be depressing but looting in natural disasters is just a myth. A strange myth people cling to, I can think of happier fables to believe in.