Murderers shouldn't get life in prison, just the death penalty. Same with rapists/child molesters. In cases where there is zero doubt about their conviction they should be executed summarily. Take them out back of the courthouse to a firing squad. Done.
For whatever insane liberal reason they aren't executed the aforementioned convicts most certainly should never have the right to be forgotten for their heinous crimes. Yes, it should haunt them so long as they draw breath. There is no forgiveness for those sorts of crimes. And they warrant warning the rest of society about who they are and what they've done. Society needs and deserves that protection.
"If you're going through Hell...keep going."
- Winston Churchill