My two cents: maybe the memory should be longer for a few things, stealing a loaf of bread or smoking pot is quite different from murders. In many countries cold blooded murders give you a life sentence or death (either by the state--or victim's family members when the state does not act) so maybe this guy should have had the chance to file such an appeal.
Personally I think we should either rehibilitate and then forget in order to give them a chance to contribute to society, or keep them in prison. The idea of releasing people but then villifying them will basically just channel them back into the criminal system again. Studies have shown the best way to prevent crime is with reintegrating them socially. The biggest risk factors are:
"prior criminal history, lifestyle instability (unemployment, frequent moves), and negative peer associations"
The right to be forgotten would reduce two out of three of those risks.
https://www.publicsafety.gc.ca/cnt/rsrcs/pblctns/smrsk-fctrs...
It was "Mord" according to the ruling (https://www.bundesverfassungsgericht.de/SharedDocs/Entscheid...), which is "murder", even if German law might not use the exact same wording as whatever laws you may have in mind. See https://en.wikipedia.org/wiki/Murder_in_German_law.
> The idea of releasing people but then villifying them will basically just channel them back into the criminal system again.
Agreed.
"Voluntary manslaughter Sometimes called a crime of passion murder, is any intentional killing that involves no prior intent to kill, and which was committed under such circumstances that would "cause a reasonable person to become emotionally or mentally disturbed". Both this and second-degree murder are committed on the spot under a spur-of-the-moment choice, but the two differ in the magnitude of the circumstances surrounding the crime. For example, a bar fight that results in death would ordinarily constitute second-degree murder. If that same bar fight stemmed from a discovery of infidelity, however, it may be mitigated to voluntary manslaughter."