Is there anyway to release arrested prisoners like Alphonso DiCerbio, Ethien de pasque after I put them in cage? or we have no choices but to burn them or caged them there forever?

I tortured Alphonso and he told the location of the Devil's carven so I don't need him anymore but i just don't want to burn people just for asking a location.

And Ethien de pasque, he's a faithful paladin, maybe he's still redeemable.

I know they did crimes but the purpose for arresting them is for asking a location/evidence of another case at the first place so I don't want to just burn them to dead, and what if I wrongly arrest an innocent person like Edmond d'Arvias, there won't be anyway to get them out?