This show made me sick to my stomach. After watching I feel that that girl hit that boy on purpose. If (and that is a BIG if) Daniel threatened Brandi's life she would have gone back the next day, she was a straight-A student, which would imply that she was smart. Also, if the other family had been calling and making problems, why wouldn't she tell her parents when they called again, so they could call the police to make a report??
Her tears seem to be more for herself and having to spend 12 years in jail, not for the fact that she killed someone.
That girl hit that boy so hard with her car that she made him fly 58 feet! By accident? very unlikely. I think it is interesting that she didn't have the presence of mind to stop to see what she hit, but had the presence of mind to stick a tree limb through her window, and sneak back in.
The fact that she said "he got what he deserved" speaks volumes.
I cannot believe that she is blaming her attorney for her sentence, she got a slap on the wrist, she can get out and make a life for herself, he cannot.
She has taken absolutely no responsibility for her actions, and I do not believe she is sorry at all. When Dr. Phil asked her why she cries herself to sleep at night she NEVER ONCE said because she took someones life.
I don't necessarily think that her sitting in prison is going to help Daniel's family heal, but I do think that her parents want her home for themselves, and are not thinking about the fact that she KILLED someone and she needs to pay and be sorry about that before she can be released. I do not think that she is ready to be released, she isn't sorry, she shouldn't be released until she is. 
I think that Brandi's parents are lashing out at the wrong people, Daniel's family didn't get behind the wheel of the car and hit their son, their daughter did, and they need to accept the fact that she killed him and the other family is grieving. BUT Daniel's family seems like they are trying to grieve and feel better by blaming Brandi and her family, and that isn't right either. I think that the issues between these two families run very deep (deeper than we could see on the show) and in order to heal they are going to have to get out of each other's face and stop blaming each other.