Alternatively, anything similar? Maybe Loki is charged for some other crime that & it's later proven he's innocent. Or maybe the punishment itself is found to be unintentially harsh due to him being a Jotun rather than an Asgardian. Or maybe Loki is guilty but the punishment is just too much and he ends up dying/killing himself.
Honestly, I imagine this might be slightly obscure so I'll try anything even remotely similar.
I'd really just love to see some people be in the middle of their righteous fury only to realize they've totally screwed up.