Mafia 31. Twilight Dances.

He can be executed tomorrow, anyway; he won't be able to do much at night.

Actually, yes, I didn't notice it at first, but the Enchantress or the Dancer with her crappy disks is much more imba and dangerous, so we can postpone dealing with Rimple for a long time. Well, you get the idea ;)

++Also, I want to say that if Slonysh is a Councillor, she won't put herself in jail, but on the other hand, if she is even a Golem (unlikely!), she can be freed by an Angel.
So, that's it, all the arguments in her favor.