I saw a video of a dog fight on CNN and it was horrific. They had footage of dogs that had been rescued from fights, and so many of them had these awful wounds all over their faces from being bitten by other dogs. If he's guilty, he should get the maximum time possible, because this 'sport' is appallingly cruel.
What bothers me more is that they interviewed a schoolteahcer from Chicago, who said that they asked the kids (I think 2nd/3rd graders) if they'd been to a dogfight and so many of them raised their hands that the Chicago schools have had to start an education campaign to tell the kids why dog fighting is wrong.