How Volunteer Sleuths Identified a Hiker and Her Killer After 36 Years. Murders, Attempted Murders and Homicides, Genetics and Heredity, GEDMatch, Missing Persons, Lake Tahoe (Nev), Forensic Science, DNA (Deoxyribonucleic Acid), Silvani, Mary Edith (1948-82), Curry, James Richard (1946-83)