I am 99% sure that these have been around for some time now and where not just taken out of New orleans but there is the email and the pics big croc non the less,

[This crocodile was found in New Orleans swimming down the street. 21 FT
long, 4,500 lbs, around 80
years old minimum.

Specialists said that he was looking to eat humans because he was too
old to
catch animals. This crocodile was killed by the army last Sunday at 3:00
pm, currently he is in
the freezer at the Azur hotel. The contents of it's stomach will be
analyzed
this Friday at 2:30pm.]