The Mystic Wolf goes after the Alpha Wolf, so had the AW turned the Drunk into a WW, the MW would receive a Wolf result when investigating the artist formerly known as Drunk. Right @SVNBob, they would get the result based on the identity of the player at that point, with any actions that had already been done to them already done?
Also I never said I knew the Drunk was in play; I said I knew that at least one of the two (Troublemaker or Drunk) were in play.