So not willing to reveal it even now? What made you think it was CK? It could have been me or Villain too.
Me and Simon were confirmed towns.
You and villain investigated Simon and got town so they had to be Naive or Sane. Remaining were Insane, Paranoid and Mafia.
CK investigated me and got me as mafia but I knew I am town so either he could be Insane or Paranoid or Mafia, If CK was Insane, I had to be Paranoid and Simon Mafia but he was confirm town. If CK was Paranoid, I had to be Insane and Simon mafia but again he was confirmed Town. So only one role left for CK as Mafia. But it all dependent on you two not lying, hence I didn't revealed it.