Silly me. And I thought it was about punishing wrongdoing

What is wrong with this picture?

An 85-year-old Lithuanian was convicted for
cooperating with the Nazis and persecuting Jews but he will not serve
jail time because of his age, according to a BBC report.A court in Vilna ruled that Dailide will not go to jail "because he is very old and does not pose danger to society."

Algimantas Dailide was convicted for the arrest of two polish
nationals and 12 Jews while he served in the police during World War
II. At that time, the local police was controlled the Nazi regime.

I wasn't aware that the purpose of prison was to protect others.  If that's the rationale, the man who stalks his girlfriend and kills her shouldn't go to prison because his monomania was about her.  Now that she's dead, no worries.  Or how about the man who beats his child to death?  No more child, no more risk.  That's simply an obscene rationale for allowing a murderer to go free.  And so what if he's old.  It makes it all the more imperative that he do at least some time for his crime.  Anyway, I think the Simon Wiesenthal Center has it right:

The decision proves that Lithuania is
unwilling to punish Nazi war criminals and is unwilling to face the involvement of its citizens in the mass killing of Jews, the Center said.