1) A poor man has to stealthily steal food for his starving wife and child, gets caught, goes through trialing, and is hung for a minor offense. You can describe the wronging or how cruel this treatment/punishment was.
2) Go for a full out murderer or serial killer with a dark past. Could be fun to describe the emotional pain of their crimes. He/She is caught some how and is immediately sentenced to being hung. Some how it is rigged perhaps by a worker to punish the killer, to torture him.
I don't know, just some thoughts ;)
Hope you enjoy!