A very sharp instrument means a clean, smooth, not jagged cut, like a surgeon would do. Are there trainings on cadavers nearby such as a medical school or hospital? Someone had access to the tool required to produce this type of dismemberment. They went to a lot of trouble to prevent identification. In the 1990s the common form of ID was dental and fingerprints. The fact that there isn’t sufficient DNA to test is puzzling. They has soft tissue and bone. Perhaps they will exhume her remains to recover a better DNA sample.
Snip from link:
On Sunday, 10-22-95, at about 9:30 a.m., the partial remains of a human were found approximately 28 miles north of Blythe near Hwy. 95. The remains appear to be both arms and legs of a white female and were found in trash bags. No other body parts (including the hands) were located. Investigators believe the body parts were placed there between 10:30 P.M., 10-21-95 and 9:30 A.M., 10-22-95. Initial observation indicates the cuts made to remove the limbs were made with a very sharp instrument. No other marks or tattoos were observed. The victim is believed to be a white female adult, 20 - 40 years of age, approximately 5'6" in height, possibly well-tanned and freckled.
