HAZLETON, Pa.—DNA and a 20-year-old genealogy expert helped state police identify the man who abducted, raped and murdered a young girl in a case that rattled a Pennsylvania coal town nearly six decades ago, officials announced Thursday. State police exhumed the long-dead assailant’s body last month and said his DNA precisely matched DNA left on the jacket of the victim, 9-year-old Marise Ann Chiverella, who was snatched on the morning of March 18, 1964, as she walked to school in Hazleton, about 80 miles (129 kilometers) north of Philadelphia. Her body was found that afternoon in a nearby waste coal pit. Authorities say she was raped and strangled. Police identified her killer as James Paul Forte, a bartender with a record of violent sexual assault, who died of natural causes in 1980 at age 38. Police said Forte, who was 22 at the time of the murder, had no known …