When Wayne Hedgepath opened the door to his daughter Tracy’s home Friday night, he found her and two of his grandchildren dead, and a third clinging to life with a gunshot wound to the head. “Daddy did it,” the surviving girl, 7-year-old Destiny Minter, can be heard telling her grandfather on a recording of his call to 911. Court records show her father, Austen Minter, had a history...