Funny enough, this just happened to me.
Jailor, Doc, Med and SK left. Jailor (who doesn't have any executions anymore bc he exed a townie) jailed the SK, so because he couldn't exe, SK attacked him in jail and he got healed by the Doc. But he didn't get this and got confused, saying Kitty (the one he jailed) couldn't be SK because he had jailed him. Jailor then proceeds to pass on the SK tag to the Med, and for some reason... the Doctor voted along the Jailor to hang the Med.
Jailor didn't jail SK the next night and got attacked. O_O.
They could've pulled it off if he had jailed the SK again the next night and tell Doc to heal him, then vote the SK out in daytime.
He said it was because he hadn't played the game in years.