I'm not convinced he didn't do it. After all a system that can wrongly convict someone can also wrongly aquit someone too, no?
However, he has had his conviction overturned, and as such he is legally innocent of murder. It is therefore not up to those who think otherwise to decide that he did it and should remain locked up.
But while I don't agree that he should have remained in prison, I certainly don't feel sympathy for him in the way some people do. Regardless of whether he did or did not kill JD, he is clearly an unpleasant individual who has been proven to have committed sexual asalts on other women, and who said he couldn't have killed jd because he was "stalking someone else at the time."
While I don't think that anyone deserves to be wrongly convicted of a crime they didn't commit, I do think that if you lead a certain lifestyle, ie stalking/harrassing/sexually asalting women, there is going to come a time when you will be suspected of, and possibly even convicted of doing something you didn't do.
If BG hadn't spent his life making other womens' lives a misery, then perhaps the authorities wouldn't have had reason to suspect him in the first place.