Louisiana State Law, defining negligent homicide:
§32. Negligent homicide
A. Negligent homicide is the killing of a human being by criminal negligence.
B. The violation of a statute or ordinance shall be considered only as presumptive evidence of such negligence.
C. Whoever commits the crime of negligent homicide shall be imprisoned with or without hard labor for not more than five years, fined not more than five thousand dollars, or both. However, if the victim was killed as a result of receiving a battery and was under the age of ten years, the offender shall be imprisoned at hard labor, without benefit of probation or suspension of sentence, for not less than two nor more than five years.
Around this time tomorrow, I'd ask that any New Orleans' district attorneys who aren't either dead, under water, or both to start considering how this statue might apply to New Orleans Mayor C Ray Nagin, who waited until Sunday morning to issue a mandatory evacuation order, despite storm predictions as early as Saturday showing that Katrina would be a killer storm for New Orleans.
No, I'm not kidding.
And by all means, if you are one of those unfortunates currently trapped in New Orleans, please, please: prove my fears wrong, and be safe.
see also: the Katrina topic page