I wonder if the charges against grandma and the gf are to discourage others from helping someone like him when they do something like leave the scene and try to destroy evidence. 

Or if this case is unique because mom is willing to snitch on everyone to save her own skin.  Honestly I'm not surprised to hear more about this case than the one with the girl who was more worried about her car then the person she hit with it. 

Everyone was appalled because this guy stopped to check a pulse, peel the guy off the car, and leave him for dead running red lights along the way.  Seriously living in a desensitized time when we have several hit and run deaths and the folks hitting people have such little remorse or regard for others. Alexandra at least faked remorse for a moment before worrying about going on trips to the fair and all.