Derek Bentley was both posthumously pardoned and had his murder conviction revoked.
For those who don't know (esp non-Brits) here's
a quick precis (Wiki but it appears accurate).
It is often cited in anti capital punishment cases.
It might not seem like much, but his sister fought hard for it and I respect her for that.
I first learned of the case via Elvis Costello's
Let Him Dangle, Christopher Ecclestone's wonderful portrayal in
Let Him Have It and The Mary Whitehouse's sketches. Not sure of the chronology of those tbf.
For years Dads said he deserved it - to him, associating with someone who carried a gun was the same as shooting someone yourself.
Imagine the jollity that ensued when two of his mates from the old days came to his 70th and were talking about Mad So-and-so, partially called that because he always carried a knife. I won't let Dad forget that for a while (not meant to spark any debate about weapons carrying, just my way to gently bait Dad about being hypocritical).