Ms. Mayo said that they were prisoners of war or slaves sacrificed or committed suicide. Similar burials were discovered in Sitio Conte. Confirming found a hint at what death awaited those unfortunates - container with the bones extremely poisonous fish-dog Guentheridia formosa. One of the many mysteries of the El Cano is that the decorations are image-humans and mythological creatures. According to some experts, it is the spirits of the animals, which was worshiped as ancestors. Such beliefs were common in pre-Columbian America.