[madison10]

...Or are the criminal looters burning the buildings where people are holed up with supplies?

That'd be my guess. Is this a building surrounded by water, or is it on dry land, I cannot tell from photo. If water, couldn't they grab a door or something & float.

[conservativebabe]

Shep also said there was a fear of this happening from people trying to cook remaining food on porches,etc.

[Cboldt]

Is this a building surrounded by water, or is it on dry land ...

I saw one shot that made it look as though at least one building was on dry land. There was a pickup truck parked next to one of the burning structures.