Like Michael Myers, Jason Voorhees and Freddy Krueger, just when you thought it was gone for good, Tucson's own Slaughterhouse haunted attraction has announced it is coming back for another final season.The annual scarefest returns on October 2 and will operate every Thursday through Sunday through Nov. 1.Organizers have been threatening fans for years with closure."For the past three years, The Slaughterhouse property has been under contract fo…