Bayley's sentence was just about right. It would have been nice that he received life with no parole, but he did end up pleading guilty and the judge acknowledged that's the reason he has a slight chance of being released after 35 years.
However, it's not likely he'll be released in 35 years anyway. The man will probably be safer inside than on the outside ironically, and for those advocating for the death penalty, I can really understand where you are coming from, and same goes for those who are against it. I can see both arguments to the issue and hence I'm sitting on the fence with this issue.
Trust me, Bayley will be suffering big time in jail. I bet he would rather receive the death penalty than live out his life in jail. If the newspapers are correct, then he's going to be in constant lock up and isolated from most prisoners as he's seen as a major target to other prisoners. The fact that he harmed himself late last year suggests to me that he'd rather not be alive in prison, and instead received the 'easy way' out.