FREMONT, Ohio — The attempted importuning case against a Tiffin man arrested in March after a vigilante group’s viral confrontation at a Fremont Denny’s has been dismissed, eight days after prosecutors and defense attorneys jointly told the court that the group destroyed evidence in the case. Fremont Prosecuting Attorney and Law Director Jim Melle moved to dismiss the charge against Ronald E. Callahan, 69, on Wednesday, July 29. Judge Daniel L. …