I think he is just making himself an easy target. It helps the mafia because they can use his planted evidence to throw him under the bus, and it looks like they outed him, and we gain their trust because hey, that person sniffed out scum, thats the way to gain trust.
if he is a jester then kudos to him for getting killed. Boo to him for taking the spotlight three days and letting the mafia hide much more easially during those days. (we did get Yukiko though despite his efforts.)
My theory is that two nights ago you tried to night kill me and couldn't and thats why yesterday morning you all of the sudden flipped out for getting me lynched! you are the serial killer Kanji!
Actually if you wanted to be lynched you would have just not voted, because the self vote would have ended in your death.
Thus Mitsuo is not the jester. He is either the serial killer or just plain old mafia.
Both roles mean we need to kill him.
True, we did get Yukiko, but it was like pulling teeth to get him to change his vote from you to her and even when he did there was still a majority vote on him. He didn't know I was going to be able to convince Namatame to change his vote to Yukiko.
I don't really think he is Mafia because Yukiko consistantly voted for him, exept on the second night when she voted for Shu. If he is not the Jester, I think he is the Serial Killer.
Actually, I haven't seen Kanji do anything suspicious at all.
BTW: I was I have already posted my theories about why there was only one kill on Night 3. I doubt its because of an outragous character that you claim, and more likely because someone's role is the RoleBlocker.
but I haven't killed anyone.
I summon daidara, I know you are lurking