The dog was kept on a chain. It is known fact that a lot of Hispanics are less than stellar owners that leave their dog on a chain all the time--not necessarily out of deliberate abuse, but out of ignorance. Trust me, I know. We have no idea of what Mickey's background or life have been. It may be that he needs to be put down (I don't know), but it was not his fault--he is an animal, not a moral actor.
It is beyond question that a great many Hispanics procreate irresponsibly and then look to others to help support the consequences of such--be it the government or other citizens that are not qualified to be such. Young women should not be getting knocked up outside of wedlock and then looking to the relatives of their baby daddy to provide childcare. This is irresponsible behavior no matter what. This is how the boy got in the situation. It is not like Kevin was innocently walking down the street and set upon by a pack of killer dogs. No--stupid, thoughtless adults put him in this situation.
From what I know of pits, human-aggression is not a desired trait. The dogfighters want an animal that will tear another dog up, but can be safely handled and trusted. That doesn't mean that they are all noble dogs, or that I'm denying that a lot of hoods like to have them in order to look macho and hardcore, but like any other dog, the vast majority of the issue is how they were raised and treated. I know about retrievers that have savagely turned on people. I think dog-breed bans are as stupid as gun bans.