MADISON, Wis.—The son of a Wisconsin couple who went missing last week was formally accused Thursday of killing his father and dismembering his body, while authorities announced that additional human remains were found in another location. Chandler Halderson, 23, who was living with his parents in Windsor, is charged with first-degree intentional homicide, hiding and mutilating a corpse and providing false information on a kidnapping in regards to the death of 50-year-old Bart Halderson. Bart Halderson’s wife, 53-year-old Krista Halderson, remains missing. Authorities a week ago discovered the remains of 50-year-old Bart Halderson in the town of Cottage Grove. The remains found Wednesday and revealed Thursday were found on state Department of Natural Resources land near Sauk City. They have not been identified. Meanwhile, Dane County Circuit Court Commissioner Brian Asmus set bail for Chandler Halderson at $1 million after arguments by prosecutors and Halderson’s attorney. “The defendant has taken …