Michael Jackson's family wants a second one.
Autopsy (n/v) - meaning cutting up a corpse to discover the cause of death. From the Greek autopsia, autos- (self) and -opsis (sight), meaning "self sight." While the word originally meant "to eye witness" it quickly (17th century) acquired the meaning of studied dissection.
Necropsy (n) - A more accurate word. Composed with the Greek necro (corpse). Only dates to the 19th century in English and more commonly used for an animal autopsy.