If it's a hoax, it's pretty elaborate. Different voices every time somebody talks. Besides, I would bet there would be more "juicy" stuff on here if it were.
I think those punks may just have happened to host it on their site. There are lots of web-based scanner sites out there. If we could locate one for Louisiana/NO, we'd be able to see if it's the same thing.
We KNOW it isn't taped, because they say the shooting happened at 0145 hours, and was being reported at 0215 Central.
Police Capt. Ernie Demmo said a National Guard military policeman was shot in the leg as the two scuffled for the MP's rifle. The man was arrested.
http://news.yahoo.com/s/ap/20050901/ap_on_re_us/hurricane_katrina_27