Mafia 107. Fever and Overdose

Protection cancel!

I keep coming back to the idea that Fragment is Mafia.
But I'm very confused by the fact that he was blocked for two out of four nights. Are these some kind of mind games that I don't understand? Why waste one of two night actions on camouflage?

Besides, if he's Mafia, he can't be Father (the role is taken by Yashur), Liar (Mystiar), or Reaper (he was blocked on the night Ment was killed).

So, we need to execute Fragment...