I can understand looting. But the shooting at rescue workers in boats and helicopters is inexcusable.
Just read the Governor has authorized/deputized law enforcement from other states and they are starting to come into the city or at least making their way toward NO.
I'm a big walker/hiker in the woods near our house and I would walk miles and miles a day to get away from that hellhole. And I'd do whatever it took to survive and get food and water - except kill people for it. Having never been in that position, maybe I'm being naive. But I just don't see me ever taking water from someone equally desperate at gunpoint.
But, as I said, if it wasn't just me, and I was in that kind of Lord of the Flies setting, well...