Donna Casasanta poses in front of a painting showing her late son, Harold Dean Clouse, with Clouse’s wife, Tina Gail Linn, and their daughter, Hollie Marie Clouse, at Casasanta’s Edgewater, Fla., home in January. Clouse and Linn were murdered 40 years ago and recently identified using genealogical evidence. Patrick Connolly / Houston Chronicle
Associated Press AUSTIN — A decades-long search by a Florida woman and her extended family linked to an unsolved murder case has resulted in the…