Juneau County prosecutors say Felix Rivera-Medina beat his girlfriend’s mother and another man to death with a baseball bat.  Deputies found the bodies of 42-year-old Tina Decorah and 33-year-old Duane Mallory at a home in the town of Lyndon March 15th.  Rivera-Medina is charged with first-degree intentional homicide.  Decorah’s 23-year-old daughter, Makaela, is charged with harboring a felon and bail jumping.  Investigators say the fatal attack happened during a family fight.  Authorities arrested Rivera-Medina and the daughter two days later in Eau Claire.  Both suspects have April court appearances scheduled.