You left out some pretty important information - like the fact that the species he had (numbering in the 1000s) are not native to the US and that "... the crawfish themselves are not inherently dangerous, but they could wipe out some native fish species if they were to escape into the wild and thrive." It's already happened numerous times where native wildlife, birds, or fish have been wiped out or ended up on the endangered species list because of situations like this one. Futhermore, they DID to try to work with him but he refused to cooperate or make the changes needed to protect the local native fish species. He brought it on himself.