mrliberal:At 90 you are not the same person you were at 30, a different person is being punished.
That still begs my original question. Do you think that elderly people serving life sentences for things they did decades ago should be let out of prison on the grounds that they are now different people? If you do think so, what is your opinion on life sentences?
And if you're worried about whether or not what he did or did not do can be proven, given how long ago it happened, that's a due process argument, and has nothing to do with his age. For all we know, the evidence is still perfectly adequate for a conviction.
I understand that we have statutes of limitations because yes, at a certain point, we just decide to let go of certain things, I'm pretty sure that the vast majority of U.S. jurisdictions, at least, have no statute of limitations on murder. I don't know enough about European law to speak for them, but at least in the United States, we as a society have decided never, ever to let go of murder.