On my way out the door, saw this and had to respond.
This is possible. But there is some information you need to take into account: I was also jailed last night. My captor did not say a word to me.
Therefore the jailor IS still alive. And one of us was jailed by him. Anyway I really have to go now, but I thought you should know this before you waste more time with the disguiser theory. Koth is not disguised unless Domri is lying about being jailed last night.