This 430,000-year-old case may be the world's oldest murder mystery.

Scientists on Wednesday said a fossilized skull discovered deep inside a Spanish cave shows telltale signs of homicide: two fractures inflicted by the same weapon.

The skull, belonging to a primitive member of the Neanderthal lineage, was found in an apparent funerary site down a shaft in the appropriately bleak-sounding Sima de los Huesos, Spanish for "Pit of the Bones," in the Atapuerca mountains.