This is one of those stories where you need to hear both sides before you go off on a rant. According to the news I heard, all of the releasees were approved by parole boards and the motivation behind the Governor's pardons was to hopefully allow the released prisoners to have a better chance at finding a job.
None of that is to say that I approve. With things the way they are, I have come to believe that if a person does something bad enough to warrant prison time, it would be much more practical to just shoot them and be done with it.